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SQL tutorial 61: SEQUENCE in Oracle Database By Manish Sharma RebellionRider
 
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This tutorial is all about Sequence In Oracle Database. In this SQL Tutorial you will learn How to create a sequence How to populate a Primary key column (auto increment in Oracle) using Sequence How to drop a sequence ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/sql-sequence-in-oracle-database-rebellionrider-manish-sharma Previous Tutorial ► How To Insert Data into Table using SQL Developer http://youtu.be/YYQCSV6MzTk ► INSERT INTO Command http://youtu.be/uQXgqFtxI_k ► How to copy /Insert data into a table from another table http://youtu.be/m3Ep8tAMqok ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 39779 Manish Sharma
auto increment in sql oracle - ( Auto increment field )
 
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auto increment in sql oracle ----------------------------------------------- CREATE table customers ( customer_id int not null, customer_name varchar(50), primary key (customer_id) ); create sequence customer_id minvalue 1 start with 1 cache 10; insert into customers values(customer_id.nextval,'maxwel'); -- to drop sequence drop sequence customer_id
Views: 2898 nechali
Oracle tutorial : How to create Id with AUTO INCREMENT in Oracle PL SQL
 
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Oracle tutorial: How to create Id with AUTO INCREMENT in Oracle oracle tutorial for beginners sequence in oracle identity key in sql In this Oracle tutorial , we can create an auto increment field using ‘sequence’ object that can be assigned as primary keys. Using Oracle ‘sequence’ object, you can generate new values for a column. An Oracle sequence is an object like a table or a stored procedure. Examples CREATE SEQUENCE SYSTEM.MYSEQ START WITH 1 MAXVALUE 999999999999999999999999999 MINVALUE 1 NOCYCLE CACHE 20 NOORDER; CREATE OR REPLACE TRIGGER TR_CITY BEFORE INSERT ON CITY FOR EACH ROW BEGIN SELECT LPAD(LTRIM(RTRIM(TO_CHAR(myseq.NEXTVAL))),10,'0') INTO :NEW.id FROM DUAL; END; / Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://techquerypond.wordpress.com https://twitter.com/techquerypond
Views: 8111 Tech Query Pond
part3 drop,nextval,currval sequence
 
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create sequence, next value, current value, drop sequence, sql, oracle 10g,drop sequence
Views: 1009 Dr. Girija Narasimhan
Sequence object in SQL Server 2012
 
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create sequence in sql server In this video we will discuss sequence object in SQL Server. Sequence object Introduced in SQL Server 2012 Generates sequence of numeric values in an ascending or descending order Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/sequence-object-in-sql-server-2012.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/sequence-object-in-sql-server-2012_26.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists Creating the Incrementing Sequence : The following code create a Sequence object that starts with 1 and increments by 1 CREATE SEQUENCE [dbo].[SequenceObject] AS INT START WITH 1 INCREMENT BY 1 Generating the Next Sequence Value : Now we have a sequence object created. To generate the sequence value use NEXT VALUE FOR clause SELECT NEXT VALUE FOR [dbo].[SequenceObject] Output : 1 Every time you execute the above query the sequence value will be incremented by 1. I executed the above query 5 times, so the current sequence value is 5. Retrieving the current sequence value : If you want to see what the current Sequence value before generating the next, use sys.sequences SELECT * FROM sys.sequences WHERE name = 'SequenceObject' Alter the Sequence object to reset the sequence value : ALTER SEQUENCE [SequenceObject] RESTART WITH 1 Select the next sequence value to make sure the value starts from 1 SELECT NEXT VALUE FOR [dbo].[SequenceObject] Using sequence value in an INSERT query : CREATE TABLE Employees ( Id INT PRIMARY KEY, Name NVARCHAR(50), Gender NVARCHAR(10) ) -- Generate and insert Sequence values INSERT INTO Employees VALUES (NEXT VALUE for [dbo].[SequenceObject], 'Ben', 'Male') INSERT INTO Employees VALUES (NEXT VALUE for [dbo].[SequenceObject], 'Sara', 'Female') -- Select the data from the table SELECT * FROM Employees Creating the decrementing Sequence : The following code create a Sequence object that starts with 100 and decrements by 1 CREATE SEQUENCE [dbo].[SequenceObject] AS INT START WITH 100 INCREMENT BY -1 Specifying MIN and MAX values for the sequence : Use the MINVALUE and MAXVALUE arguments to specify the MIN and MAX values respectively. Step 1 : Create the Sequence object CREATE SEQUENCE [dbo].[SequenceObject] START WITH 100 INCREMENT BY 10 MINVALUE 100 MAXVALUE 150 Step 2 : Retrieve the next sequence value. The sequence value starts at 100. Every time we call NEXT VALUE, the value will be incremented by 10. SELECT NEXT VALUE FOR [dbo].[SequenceObject] If you call NEXT VALUE, when the value reaches 150 (MAXVALUE), you will get the following error The sequence object 'SequenceObject' has reached its minimum or maximum value. Restart the sequence object to allow new values to be generated. Recycling Sequence values : When the sequence object has reached it's maximum value, and if you want to restart from the minimum value, set CYCLE option ALTER SEQUENCE [dbo].[SequenceObject] INCREMENT BY 10 MINVALUE 100 MAXVALUE 150 CYCLE At this point, whe the sequence object has reached it's maximum value, and if you ask for the NEXT VALUE, sequence object starts from the minimum value again which in this case is 100. To improve performance, the Sequence object values can be cached using the CACHE option. When the values are cached they are read from the memory instead of from the disk, which improves the performance. When the cache option is specified you can also specify the size of th cache , that is the number of values to cache. The following example, creates the sequence object with 10 values cached. When the 11th value is requested, the next 10 values will be cached again. CREATE SEQUENCE [dbo].[SequenceObject] START WITH 1 INCREMENT BY 1 CACHE 10 Using SQL Server Graphical User Interface (GUI) to create the sequence object : 1. Expand the database folder 2. Expand Programmability folder 3. Right click on Sequences folder 4. Select New Sequence Next video : Difference between SEQUENCE and IDENTITY in SQL Server
Views: 32543 kudvenkat
SelectTec | Aula Nº 34 | Sequence/Trigger - autoincrement Oracle
 
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Syntax: Criando a sequencia: CREATE SEQUENCE nome_da_sequencia minvalue 1 maxvalue 999 INCREMENT BY 1; Criando a trigger: CREATE OR REPLACE TRIGGER nome_TRIGGER BEFORE INSERT ON "tabela" FOR EACH ROW BEGIN SELECT "NOME_DA_SEQUENCIA".NEXTVAL INTO :new."CAMPO" FROM dual; END;
Views: 1464 SelectTec
part 2 create sequence minvalue
 
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sequence, minvalue, increment, oracle 10g
ORACLE DATA INTEGRATOR ODI sequence
 
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ORACLE DATA INTEGRATOR ODI sequence
Views: 811 srinu bondada
SEQUENCES IN ORACLE SQL WITH EXAMPLES (asc, desc, cycle, nocycle, cache, nocache)
 
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This video tutorial is to understand the working of sequences in oracle SQL. The video demonstrations explain all the attributes of a create sequence statement such as start with, increment by, maxvalue, nomaxvalue, minvalue, nominvalue, cycle, nocycle, cache, nocache, order, and noorder. All the parameters are explained with appropriate examples so that the user can understand them clearly. For more detail refer to the link: http://plsqlnsql.blogspot.com/2017/01/sequences.html
Views: 1840 Kishan Mashru
Hod do I create sequence in Oracle? (Auto number in Oracle) (ICD) - icdstudents.com
 
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To get auto number in Oracle. How do create sequence in Oracle? Attributes of sequence Oracle
Views: 6134 Bhavin Trivedi
part 1 create sequence
 
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create sequence, increment by, dual table, sql, oracle 10g
part 5 create sequence increment  ve value
 
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create sequence increment using negative value,
create sequence in oracle in HINDI | Sequences in Oracle in HINDI
 
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create sequence in oracle | Sequences in Oracle in HINDI To create sequence in oracle, we have to use create sequence statement of oracle. This video of create sequence in oracle, will give you hands on practice about sequences in oracle. We have used screen capture option for making this video of sequences in oracle. The main objective of this video create sequence in oracle is to give the users a real hands on practice to use sequences in oracle. The language of the video is hindi, if you wish to watch this video in english, please suggest in comment section of this video. Oracle uses the concept of SEQUENCE to create numerical primary key values as we add rows of data into a table. Whereas numerical primary key population for MySQL and SQL Server is tied to individual tables, in Oracle the SEQUENCE construct is created separately and is not tied to an individual table. Hope this video of sequences in oracle, is helpful for you. Music www.bensound.com facebook page www.facebook.com/learningseveryday -~-~~-~~~-~~-~- Please watch: "what is flow chart | symbols of flowchart explained in hindi" https://www.youtube.com/watch?v=k2I8gp1NGGU -~-~~-~~~-~~-~-
Views: 79 Learning Everyday
How to Increment Letters and Number Combinations LTS0001 becomes LTS0002 etc
 
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In this lesson, we take a sheet with varying Letters followed by a sequence number and learn to increment the correct Item number in sequence. So if the last COPPER unit was COP0001, then the next one should be COP0002, and if the last SILVER one was SIL0016 then **Limited Offer** Learn to Make Excel Do Your Work For You with The Ultimate Excel Programmer Course – Get the Full 9+ Hour Premium Course for 75% off using coupon code: https://www.udemy.com/ultimate-excel-programmer/?couponCode=2016YOUTUBE75 Click Now to Order and get Lifetime Access to Course, Workbooks, Updates and Support! ------------------------ Create Your Own Barcode Lookup System Using Excel VBA. Learn to Make Your Own Barcode Labels the Easy way and have fun with Barcode Scanners to Automate your Workflow! In this project-driven Course, you’ll learn to Build your own Custom Inventory System with Step-By-Step video instructions. This goes in depth into some advanced Userform strategies that you can use for your other projects to come. A great weekend study! YouTube Subscibers only pay one forth! Get your 75% off Coupon here: https://www.udemy.com/barcodes-excelvba/?couponCode=2016YOUTUBE75 ------------------------ Too busy to Learn Piano? Use my Secrets and Play Your Favorite Songs Today! Did you know; You can learn 4 basic chords in about 5 minutes and instantly be able to play millions of songs. Seriously, check this course out. 75% off for my YouTube Friends! Click here: https://www.udemy.com/play-piano-by-ear-today-supercourse/?couponCode=2016YOUTUBE75 For Articles, Updates and to Contact me for Consulting or just to drop me a line, please visit http://www.ExcelVbaIsFun.com To download this FREE workbook(source code included): Click the link below. http://excelvbaisfun.com/mdocs-posts/how-to-increment-letters-and-number-combinations-lts0001-becomes-lts0002-etc/ ------------------------ Playlists: Excel Vba Basics http://www.youtube.com/watch?v=AIhKNNXzZLM&list=PLw8O1w0Hv2ztGjIkrW7suD6oNDaOk3vbR&index=1 Tips N Tricks https://www.youtube.com/playlist?list=PLw8O1w0Hv2zsPU-k2vPZ_6brD5Gk1sVy_ Userforms https://www.youtube.com/playlist?list=PLw8O1w0Hv2zvnLFyiMrihcaOqA0sT0X2U Sample Excel Programs https://www.youtube.com/playlist?list=PLw8O1w0Hv2zuP-BE7tV1UjWa0ZexZqY89 Events Series https://www.youtube.com/playlist?list=PLw8O1w0Hv2zvf-YaBApsIHloI9G6Cq1Wh Activex Controls https://www.youtube.com/playlist?list=PLw8O1w0Hv2zupzNIWkZCOYYngTtMH5nSf ------------------------ Grab an Excel Nerd T-Shirt or Hoodie: http://ExcelVbaIsFun.spreadshirt.com/ ------------------------ Interact and Follow me on: LinkedIn: http://www.linkedin.com/in/danielcstrong Facebook: https://www.facebook.com/Excelvbaisfun/ Twitter: https://twitter.com/ExcelVbaIsFun Google Plus+: http://www.google.com/+ExcelVbaIsFun 'Royalty Free Music by http://audiomicro.com/royalty-free-music'
Views: 14342 ExcelVbaIsFun
Oracle tutorial : Pseudo columns in Oracle PL SQL (pseudo column)
 
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Oracle tutorial : Pseudo columns in Oracle PL SQL ( pseudocolumn ) oracle tutorial for beginners rownum in oracle This video will show you what is Pseudo columns in Oracle PL SQL. Pseudo columns are likes ROWNUM, ROENUM, ROWID, NEXTVAL,SYSDTAE , USER etc. pseudocolumn examples Oracle tutorial : Pseudo columns in oracle Oracle supports several special-purpose data elements that are not actually contained in a table, but are available for use in SQL statements. Here is a partial list of pseudo-columns in Oracle a)CURRVAL : When using Oracle SEQUENCE values, the pseudo-column CURRVAL returns the current value of the sequence. for example: schema.sequence_name.CURRVAL b)NEXTVAL :When using Oracle SEQUENCE values, the pseudo-column NEXTVAL returns the next value of the sequence and causes the sequence to increment by one. for example: schema.sequence_name.NEXTVAL c)ROWNUM:ROWNUM returns a number indicating the order in which a row was selected from a table. d)ROWID: ROWID returns the rowid (binary address) of a row in a database table. e)USER :This pseudo-column will always contain the Oracle username under which you are connected to the database. f)SYSDATE:This pseudo-column will contain the current date and time. This column is a standard Oracle DATE datatype. The value represents the current time on the server not the client. For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond
Views: 1312 Tech Query Pond
ORACLE SQL 45: Create & Drop Sequence
 
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http://studyandshare.wordpress.com/ http://www.facebook.com/groups/studyandsharevn/
Views: 2465 studyandsharevn
Reading SQL: Creating, Using a Sequence, NEXTVAL and CURRVAL: SQL Tutorial 116
 
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Please watch: "Install Oracle Database 12c Release 2 on Windows 10 Professional 64 bit" https://www.youtube.com/watch?v=5705VFJmku0 -~-~~-~~~-~~-~- : SQL Tutorial
Views: 258 Solution Wizard
Autoincrement primary column in PostgreSQL
 
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Autoincrement primary column in PostgreSQL
Views: 35831 Alper KIZILGİL
How to create sequence step by step
 
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Hello friends in this tutorial i'm going to demonstrate you how to create sequence and how to use it step by step.
Views: 198 OCP Technology
part 4 create squence increment value
 
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create sequence, increment value, sql, oracle 10g
part32 sequence using auto primary key
 
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oracle 10g form builder, sequence, auto primary key, sql, create sequence, when_new_instance_record,
sequence in oracle
 
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in this tutorial i teach sequence in oracle
How to use Sequence generator transformation in Informatica Cloud mapping designer
 
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- Used to generate sequence of numerical value - CURRVAL = NEXTVAL + increment value (default increment value is 1) - Properties of sequence generation - Cyclic sequence - New sequence for every run - Sequence by increment value - Cached value - Manual reset of currval allowed in mapping configuration task
Views: 965 Informatica Support
part9 use sequence in table
 
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create sequence, create table, insert value, sql , oracle 10g
part 6 create sequence error
 
04:12
create sequence, error, oracle 10g, sql
part 7 alter sequence
 
03:56
alter sequence, max value, start with, sql, oracle 10g
MySQL 15 - Auto Increment (AUTO_INCREMENT)
 
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If you are using surrogate keys, every row is going to need to have a unique value for this column. The easiest way to do this is to just count upwards. The downside is that every time you insert data you are going to have to know what number to use. Fortunately, there is an easier way, with what is known as an AUTO_INCREMENT column. An AUTO_INCREMENT column is a column in a table that automatically counts upwards. If we set the PK column as an AUTO_INCREMENT column, we do not have to worry about keeping track of the numbers we've already used. Now, you can only have one AUTO_INCREMENT column per table, and you can only have one primary key per table. AUTO_INCREMENT has to be used on a primary key or a unique index. It makes sense to make the primary key column the AUTO_INCREMENT column, but you can create any other column as the AUTO_INCREMENT column as long as it has a UNIQUE index. So, for example, if you wanted to use a natural primary key but wanted to have a column that auto increments, you could do that by making the incrementing column UNIQUE. Now, the AUTO_INCREMENT does not force the data to never change. It is important to understand that the concept of surrogate and natural keys is foreign to the database. The database does not care what kind of key you use, as long as the qualifications are met. There are no keywords that say surrogate. There are no keywords that say natural. These are categories that we've made to help us better communicate about primary keys. An interesting thing you can do with primary keys is that you can make a combination of columns the primary key. This is important when more than one column is required to make something unique. In an intermediary table, instead of having an association ID, we can have the combination of two rows as the primary key. This is known as either a compound or composite primary key. In the situation of using natural keys, composite keys are more common. For example, you could have a shopping website that allows multiple people from the same household to use a certain coupon you sent out. In this situation, you could use the address and the person's name as the natural primary key. How do we reference primary keys? This requires what is known as a foreign key, which we will discuss in the next video. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 15219 Caleb Curry
AutoNumber, Identity and Using Sequences as Default Values in Oracle
 
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In this video we demonstrate the legacy method to implement autonumber or identity functionality in the Oracle database, as well as the new features in Oracle 12c that can be used to replace this method. For more information see: https://oracle-base.com/articles/misc/autonumber-and-identity https://oracle-base.com/articles/12c/identity-columns-in-oracle-12cr1 https://oracle-base.com/articles/12c/default-values-for-table-columns-enhancements-12cr1#sequences Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Alex Zaballa Blog: http://alexzaballa.blogspot.co.uk/ Twitter: https://twitter.com/alexzaballa Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 6605 ORACLE-BASE.com
What is sequence in mysql
 
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What is sequence in mysql - Find out more explanation for : 'What is sequence in mysql' only from this channel. Information Source: google
Views: 15 WikiAudio12
SQL Sequences - Part 13
 
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SQL Sequences for ORACLE DBA. http://oracledbatech.com
Part-3 (Oracle Procedures) Oracle PL SQL Training - Fast Track Series
 
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Oracle Procedures Is a group of PL SQL statement that can call by name. Syntax CREATE [OR REPLACE] PROCEDURE procedure_name [ (parameter [,parameter]) ] IS | AS [declaration_section] BEGIN executable_section [EXCEPTION exception_section] END [procedure_name]; Example:1 of procedure having Only parameter procedure. create or replace procedure insert_employee ( p_emp_name varchar2, p_deptno IN number ) is begin Insert into emp (id,name,deptno) values (emp_id_seq.nextval, p_emp_name, p_deptno); commit; end insert_employee; / Prerequisite for the Example:1 1. Need create emp table create table emp( id number, name varchar2(200), deptno number ); 2. Create sequence object. create sequence emp_id_seq start with 1 Increment by 1 nomaxvalue nocycle; How to call procedure created in Example:1 exec insert_employee('sanket',10); Or begin insert_employee('sanket',10); end; set pagesize 100 set linesize 100 column id format 999 column name format a6 column deptno format 999 select * from emp; ID NAME DEPTNO ---- ------ ------ 1 sanket 10 Example:2 of procedure having In/Out parameter procedure create or replace procedure insert_employee ( p_emp_name varchar2, p_deptno IN number, p_message OUT varchar2 ) is begin Insert into emp (id,name,deptno) values (emp_id_seq.nextval, p_emp_name, p_deptno); commit; p_message:= 'one row inserted...'; end insert_employee; / How to call procedure created in Example:2 set serveroutput on; declare v_message varchar2(100); begin insert_employee(‘',20,v_message); dbms_output.put_line(v_message); end; select * from emp; ID NAME DEPTNO ---- ------ ------ 1 sanket 10
Views: 1550 Sanket Patel
part 11 mutiple table same sequence
 
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create sequence, multiple table using same sequence, insert values,sql, oracle 10g
Oracle Forms | How to Create Auto Primary key By PRE-INSERT -36
 
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Oracle Forms | How to Create Auto Primary key By PRE-INSERT -36 To See More Forms Tutorial Click here https://www.youtube.com/watch?v=Zsu4CWo_vwk&list=PLXXvCMuixAJU3Ap_FE2zSEBicv8IC5kDU To See More Reports Tutorial Click here https://www.youtube.com/watch?v=y_0f_iILlmY&list=PLXXvCMuixAJUfU4ZISmPtHrmKe5qRvyVY Dear viewer, In this tutorial you will learn How to Create Auto Primary key by PRE-INSERT. You also learn How to Create Auto Primary key by sequence. Code: SELECT NVL(MAX(USERID),100)+1 INTO :USERID FROM USERINFO; Or, -Create Sequence Code: Select sequence_name.nextval into :USERID from sys.dual; To Get more Tutorial Subscribe The Channel click here https://www.youtube.com/channel/UCQ3ea4zVCfnKBx1_7h8raGQ?sub_confirmation=1 To Get All Post Like The Facebook Page Click here https://www.facebook.com/oracledbsolutions Follow us: Facebook: https://www.facebook.com/oracledbsolutions Youtube link: https://www.youtube.com/channel/UCQ3ea4zVCfnKBx1_7h8raGQ?view_as=subscriber Facebook Group: https://www.facebook.com/groups/465557066961548 Contact us: email: [email protected] Skype: oracle26solutions Mob: 01734557080, 01627422780
Views: 119 OracleDB Solutions
Sequence vs AUTO_INCREMENT - Criação e Comportamento | Aula #02 | UpInside
 
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Salve salve galera, Gustavo Web aqui com mais uma aula e agora a gente vai abordar o assunto SEQUENCE. https://www.upinside.com.br/blog/sequence-vs-auto-increment-criacao-e-comportamento Se você ainda não sabe do que se trata, é uma propriedade do PostgreSQL para ter o mesmo resultado do auto_increment de outros SGDB's de mercado como mysql e mariadb. Como trabalhamos com banco de dados relacional, uma das premissas que temos no nosso banco é que não podemos ter um registro com chave primária duplicada. Para manter a coesão e a integridade das informações, cada SGDB tem um tipo de comportamento. Nessa aula eu também uso dois links da documentação oficial do PostgreSQL, para acessar a página de como criar a SEQUENCE você pode clicar aqui, e para acessar sobre a propriedade DEFAULT/NEXTVAL clique aqui. https://www.postgresql.org/docs/current/static/sql-createsequence.html https://www.postgresql.org/docs/current/static/ddl-default.html Você vai notar nessa aula, que embora estamos trabalhando com outra plataforma de banco, conseguimos ter o mesmo resultado com pouquíssimo trabalho. Confira essa aula, pois ela é essencial para você modelar sua estrutura no PGSQL :) https://www.upinside.com.br/blog/sequence-vs-auto-increment-criacao-e-comportamento
Views: 1359 UpInside
Oracle, Find Failed Queries
 
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It is very difficult to find failed queries executed by Entity Framework. Use following plsql trigger to find quries CREATE TABLE QUERY_LOG ( ID NUMBER, ORA_ERR VARCHAR2(10), EXE_DATE DATE, QRY_LOG NCLOB) / CREATE SEQUENCE QUERY_LOG_ID NOCACHE / CREATE OR REPLACE TRIGGER Failed_To_Extend_Temp AFTER SERVERERROR ON DATABASE DECLARE l_sql_text ora_name_list_t; l_n NUMBER; t1 NCLOB; BEGIN --IF (is_servererror(942) ) THEN l_n := ora_sql_txt(l_sql_text ); FOR I IN 1 .. l_n LOOP t1 := t1||l_sql_text(i); END LOOP; INSERT INTO QUERY_LOG (Id , Ora_Err , EXE_DATE , QRY_LOG) VALUES (QUERY_LOG_ID.Nextval, ora_server_error(1), Sysdate,t1 ); --END IF; END; /
Views: 45 Nivas Shelke
create auto-increment Id for table in oracle database
 
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create auto-increment Id for table in oracle database
Views: 20616 Ahmad Naser
part 10 multi user using same sequence
 
04:19
create sequence, multi user using same sequence, sql, oracle 10g
part 8 user squences
 
02:10
create sequence, user_sequences, oracle 10g,sql
SQL Server Sequence Part2
 
08:52
Sequence in SQL Server 2012
Views: 44 Informatica
SQL SSMS script for creating a table
 
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This is a video showing how to create a table using the script and executing it. Please visit my website www.cyberexplorer.com(still in progress) to watch all the three parts of the tutorial
Views: 89 Jhonathan Tims
Chapter 28 - What are Identity Columns in IBM DB2 Database
 
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Introduction into IBM DB2 Database The IBM DB2 Database for Administrators training series will address future DBA who want to understand the aspects of DB2 ecosystem. Will train their administration skill and develop skill that will be used in the work enviroment. IBM DB2 is the database of choice for enterprise-wide solutions. Optimized to deliver industry-leading performance while lowering costs, IBM DB2 offers extreme performance, flexibility, scalability and reliability for any size organization. db2 database | ibm db2 express | db2 tutorial | db2 sql | db2 connect | what is db2 | db2 express | db2 sqlcode | sqlcode db2 | db2 express | Db2 Commands | db2 connect | db2 connect to database | db2 connection string | what is db2 | More Articles, Scripts and How-To Papers on http://www.aodba.com
Views: 300 AO DBA
Secuencias en Postgresql
 
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Aqui les traigo este pequeño video de como hacer una secuencia en Postgresql
Views: 4608 Walfre López
11G features
 
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11G features / Drop Table Test; / 1) Invisible Index / Create Table Test (A Number, B Varchar2(20) ); / Begin For I In 1..100000 loop Insert Into Test Values(I,'test'||I); End Loop; end; / explain plan for Select * From Test where b='test1850'; / Select * From Table(Dbms_Xplan.Display()); / Create Index In_test On Test(b) visible; / Alter Index In_test Invisible; / Alter Index In_test Visible; / Select * From User_Indexes Where Table_Name='TEST'; / ===================== 2) Sql Result Cache / 1. 1st Time It Will Execute The Query From Db 2. After That If We Execute The Same Query, It Wont Execute The Query Again In Db. It Will Fetch The Result From This Cache Memory. ===================== 3) Read only table: / Drop Table Test1; / Create Table Test1 ( A Number, B Number, C Varchar2(20) ); / Insert Into Test1 Values (10, 20, 'test'); / Select * From Test1; / Alter Table Test1 read only; / Insert Into Test1 Values (10, 20, 'test'); / Select * From Test1; / Alter Table Test1 Read write; / Insert Into Test1 Values (10, 20, 'test'); / Select * From Test1; / =========================== 4) Virtual Column; ====== / Drop Table Hist_Student; / CREATE TABLE HIST_STUDENT( ST_MARKS NUMBER, St_Max_Marks Number, St_Perc Number As (round(St_Marks/St_Max_Marks)*100), sum_marks number as (st_marks+st_max_marks) ); / Insert Into Hist_Student (St_Marks,St_Max_Marks) Values(93,150); Insert Into Hist_Student (St_Marks,St_Max_Marks) Values(85,100); / Select * From Hist_Student; / ====================== 5)Listagg / Syntax: / LISTAGG - LISTAGG (measure_expr [, 'delimiter_expr']) WITHIN GROUP (ORDER By Clause) [Over Partition Byclause] / Select Department_Id, Listagg( first_Name,',') Within Group(Order By Salary) Employees From Employees group by department_id; ====================== 6) Sequence Usage / DECLARE L_ID NUMBER; BEGIN L_ID:= TEST_SEQ.NEXTVAL; End; / 7) Regexp_Count / WITH C AS (SELECT ‘Sachin Tendulkar’ STARS FROM DUAL UNION ALL Select ‘virender Sehwag’ Stars From Dual Union All SELECT ‘Gautam Gambhir’ STA`RS FROM DUAL UNION ALL SELECT ‘MS Dhoni’ STARS FROM DUAL UNION ALL SELECT ‘Yuvraj Singh’ STARS FROM DUAL) SELECT STARS, REGEXP_COUNT(STARS, ‘s’, 1, ‘i’) S FROM C; STARS S --------- -- Sachin Tendulkar 1 Virender Sehwag 1 Gautam Gambhir 0 MS Dhoni 1 Yuvraj Singh 1
Oracle sql chapter 6
 
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Chapter 29 - Working with IBM DB2 Database Sequences
 
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