Previously on this blog, I've written a post explaining why you should use jOOQ's code generator, despite the possibility of using jOOQ without it. In a similar fashion, as I've answered numerous jOOQ questions on Stack Overflow, where someone used jOOQ to build a query, but then executed it elsewhere, including on: JPA JDBC / … Continue reading Why You Should Execute jOOQ Queries With jOOQ
Tag: identity
How to Fetch All Current Identity Values in Oracle
Oracle 12c has introduced the useful SQL standard IDENTITY feature, which is essentially just syntax sugar for binding a sequence to a column default. We can use it like this: create table t1 (col1 number generated always as identity); create table t2 (col2 number generated always as identity); insert into t1 values (default); insert into … Continue reading How to Fetch All Current Identity Values in Oracle
Subtle SQL differences: IDENTITY columns
As I'm mostly using Oracle, IDENTITY columns were not so important to me up until I started to support them in jOOQ. Then, I found that yet again, there are many differences between various databases in how they handle IDENTITY columns in DDL and in DML. In SQL, there are essentially three orthogonal concepts of … Continue reading Subtle SQL differences: IDENTITY columns