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REPEAT statement
Applies to ❌ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
WHILE's lesser known little sibling is REPEAT
, which works the same way as Java's do
statement. It is mostly not as useful as WHILE
, but can be, occasionally, when a loop must be iterated at least once.
An example:
-- MySQL syntax REPEAT INSERT INTO t (col) VALUES (i); SET i = i + 1; UNTIL i > 10 END REPEAT;
// All dialects Variable<Integer> i = var("i", INTEGER); repeat( insertInto(T).columns(T.COL).values(i), i.set(i.plus(1)) ).until(i.gt(10))
Dialect support
This example using jOOQ:
repeat(deleteFrom(BOOK).where(BOOK.ID.eq(i)), i.set(i.plus(1))).until(i.gt(10))
Translates to the following dialect specific expressions:
Aurora Postgres, Oracle, Postgres, YugabyteDB
<<alias_2>> LOOP DELETE FROM BOOK WHERE BOOK.ID = i; i := (i + 1); EXIT alias_2 WHEN i > 10; END LOOP
BigQuery, DB2, HSQLDB, MariaDB, MySQL
REPEAT DELETE FROM BOOK WHERE BOOK.ID = i; SET i = (i + 1); UNTIL i > 10 END REPEAT
Exasol
REPEAT DELETE FROM BOOK WHERE BOOK.ID = i; i := (i + 1); UNTIL i > 10 END REPEAT
Firebird
alias_2: WHILE (1 = 1) DO BEGIN DELETE FROM BOOK WHERE BOOK.ID = :i; :i = (:i + 1); IF (:i > 10) THEN LEAVE alias_2; END
H2
do { try (PreparedStatement s = c.prepareStatement( "DELETE FROM BOOK\n" + "WHERE BOOK.ID = ?" )) { s.setObject(1, i); s.execute(); } i = (i + 1); } while (!(i > 10))
Hana
WHILE 1 = 1 DO DELETE FROM BOOK WHERE BOOK.ID = i; i = (i + 1); IF i > 10 THEN BREAK; END IF; END WHILE
Informix
<<alias_2>> LOOP DELETE FROM BOOK WHERE BOOK.ID = i; LET i = (i + 1); EXIT alias_2 WHEN i > 10; END LOOP
ASE, Access, Aurora MySQL, ClickHouse, CockroachDB, Databricks, Derby, DuckDB, MemSQL, Redshift, SQLDataWarehouse, SQLServer, SQLite, Snowflake, Sybase, Teradata, Trino, Vertica
/* UNSUPPORTED */
Generated with jOOQ 3.21. Support in older jOOQ versions may differ. Translate your own SQL on our website
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