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DROP TABLE IF EXISTS
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
For idempotent execution of DDL scripts, the useful IF EXISTS clause is supported by jOOQ, and emulated using an anonymous, procedural block if possible.
// Drop a table
create.dropTableIfExists("table").execute();
Dialect support
This example using jOOQ:
dropTableIfExists("table")
Translates to the following dialect specific expressions:
Access
DROP TABLE table
Aurora MySQL, Aurora Postgres, BigQuery, CockroachDB, DuckDB, Exasol, H2, HSQLDB, Informix, MariaDB, MemSQL, MySQL, Oracle, Postgres, SQLite, Snowflake, Sybase, Vertica, YugabyteDB
DROP TABLE IF EXISTS table
DB2
BEGIN
DECLARE CONTINUE HANDLER FOR SQLSTATE '42704' BEGIN END;
EXECUTE IMMEDIATE '
DROP TABLE table
';
END
Firebird
EXECUTE BLOCK
AS
BEGIN
EXECUTE STATEMENT '
DROP TABLE table
';
WHEN sqlcode -607 DO
BEGIN END
END
Hana
DO BEGIN
DECLARE EXIT HANDLER FOR SQL_ERROR_CODE 259 BEGIN END;
EXECUTE IMMEDIATE '
DROP TABLE table
';
END;
SQLDataWarehouse
BEGIN TRY
DROP TABLE table
END TRY
BEGIN CATCH
IF error_number() != 3701 BEGIN
DECLARE @ErrorMessage NVARCHAR(4000) = ERROR_MESSAGE();
DECLARE @ErrorSeverity INT = ERROR_SEVERITY();
DECLARE @ErrorState INT = ERROR_STATE();
RAISERROR (@ErrorMessage, @ErrorSeverity, @ErrorState);
END;
END CATCH
SQLServer
BEGIN TRY DROP TABLE table END TRY BEGIN CATCH IF error_number() != 3701 THROW; END CATCH
ASE, ClickHouse, Derby, Redshift, Teradata, Trino
/* UNSUPPORTED */
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