This documentation is for the unreleased development version of jOOQ. Click on the above version links to get this documentation for a supported version of jOOQ.
Applies to ❌ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
Hey, we don't judge anyone. You have your reasons for using this statement.
In the previous section, we introduced labels. Now we make use of them. For instance, to conditionally skip a set of statements. Or to simplify the example, to inconditionally skip them:
-- PL/SQL BEGIN INSERT INTO t (col) VALUES (1); GOTO l1; INSERT INTO t (col) VALUES (2); <<l1>> INSERT INTO t (col) VALUES (3); END;
// All dialects Label l1 = label("l1"); begin( insertInto(T).columns(T.COL).values(1), goto_(l1), insertInto(T).columns(T.COL).values(2), l1.label(insertInto(T).columns(T.COL).values(3)) )
Some dialects (e.g. T-SQL) may implement "full GOTO" in the ways that are generally not really helping readability or maintainability of code, namely the idea that
GOTO can be used to jump into any arbitrary scope that should not be reachable through ordinary control flow. This is not possible in other languages, like PL/SQL, and currently cannot be emulated by jOOQ.
goto is a reserved keyword in the Java language, so the jOOQ API cannot use it as a method name. We've suffixed such conflicts with an underscore:
This example using jOOQ:
Translates to the following dialect specific expressions:
-- DB2 BEGIN l: INSERT INTO BOOK (ID) VALUES (1); GOTO l; END -- INFORMIX, ORACLE BEGIN <<l>> INSERT INTO BOOK (ID) VALUES (1); GOTO l; END; -- SQLDATAWAREHOUSE, SQLSERVER BEGIN l: INSERT INTO BOOK (ID) VALUES (1); GOTO l; END; -- ACCESS, ASE, AURORA_MYSQL, AURORA_POSTGRES, BIGQUERY, COCKROACHDB, DERBY, EXASOL, FIREBIRD, H2, HANA, HSQLDB, MARIADB, -- MEMSQL, MYSQL, POSTGRES, REDSHIFT, SNOWFLAKE, SQLITE, SYBASE, TERADATA, VERTICA, YUGABYTEDB /* UNSUPPORTED */