Starting with jOOQ 3.17, the Condition type extends the Field<Boolean> type. Because, that's what the SQL standard thinks it is, in sorts: <boolean value expression> ::= <predicate> The exact definition contains intermediate rules, but you get the idea. A <predicate> (which is a Condition in jOOQ) can be used wherever a <boolean value expression> can … Continue reading A Condition is a Field
Tag: BOOLEAN type
How to Map MySQL’s TINYINT(1) to Boolean in jOOQ
MySQL 8 does not yet support the BOOLEAN type as specified in the SQL standard. There is a DDL "type" called BOOL, which is just an alias for TINYINT: create table t(b bool); select table_name, column_name, data_type, column_type from information_schema.columns where table_name = 't'; The above produces: TABLE_NAME|COLUMN_NAME|DATA_TYPE|COLUMN_TYPE| ----------|-----------|---------|-----------| t |b |tinyint |tinyint(1) | Notice … Continue reading How to Map MySQL’s TINYINT(1) to Boolean in jOOQ
jOOQ Tuesdays: Chris Saxon Explains the 3 Things Every Developer Should Know About SQL
Welcome to the jOOQ Tuesdays series. In this series, we’ll publish an article on the third Tuesday every other month (today, exceptionally on a Wednesday because of technical issues) where we interview someone we find exciting in our industry from a jOOQ perspective. This includes people who work with SQL, Java, Open Source, and a … Continue reading jOOQ Tuesdays: Chris Saxon Explains the 3 Things Every Developer Should Know About SQL
Yet Another 10 Common Mistakes Java Developers Make When Writing SQL (You Won’t BELIEVE the Last One)
(Sorry for that click-bait heading. Couldn't resist ;-) ) We're on a mission. To teach you SQL. But mostly, we want to teach you how to appreciate SQL. You'll love it! Getting SQL right or wrong shouldn't be about that You're-Doing-It-Wrong™ attitude that can be encountered often when evangelists promote their object of evangelism. Getting … Continue reading Yet Another 10 Common Mistakes Java Developers Make When Writing SQL (You Won’t BELIEVE the Last One)