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DROP SCHEMA 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 schema
create.dropSchemaIfExists("schema").execute();
Dialect support
This example using jOOQ:
dropSchemaIfExists("schema")
Translates to the following dialect specific expressions:
Aurora Postgres, CockroachDB, DuckDB, Exasol, H2, HSQLDB, MariaDB, MemSQL, MySQL, Postgres, Redshift, Snowflake, Vertica, YugabyteDB
DROP SCHEMA IF EXISTS schema
ClickHouse
DROP DATABASE IF EXISTS schema
DB2
BEGIN
DECLARE CONTINUE HANDLER FOR SQLSTATE '42704' BEGIN END;
EXECUTE IMMEDIATE '
DROP SCHEMA schema RESTRICT
';
END
Hana
DO BEGIN
DECLARE EXIT HANDLER FOR SQL_ERROR_CODE 362 BEGIN END;
EXECUTE IMMEDIATE '
DROP SCHEMA schema
';
END;
Oracle
DROP USER IF EXISTS schema
SQLDataWarehouse
BEGIN TRY
DROP SCHEMA schema
END TRY
BEGIN CATCH
IF error_number() != 15151 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 SCHEMA schema END TRY BEGIN CATCH IF error_number() != 15151 THROW; END CATCH
ASE, Access, Aurora MySQL, BigQuery, Derby, Firebird, Informix, SQLite, Sybase, Teradata, Trino
/* UNSUPPORTED */
Generated with jOOQ 3.20. Translate your own SQL on our website
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