Home Backend Development PHP Tutorial How to implement a function similar to automatically increasing ID in Oracle?_PHP Tutorial

How to implement a function similar to automatically increasing ID in Oracle?_PHP Tutorial

Jul 13, 2016 pm 05:00 PM
oracle Function Increase accomplish us database use of system automatic design

We often use an ID automatically assigned by the system as our primary key when designing a database, but there is no such function in ORACLE. We
can implement the function of automatically adding IDs by taking the following functions
1. First create sequence
create sequence seqmax increment by 1
2. Use the method
select seqmax.nextval ID from dual
to get an ID
If you put this statement in the trigger, You can achieve the same function as ms sql's automatic ID increase!


www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631208.htmlTechArticleWe often use an ID automatically assigned by the system as our primary key when designing the database, but in ORACLE There is no such function, we can implement it by taking the following function...
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