DROP (Table Deletion)¶
Both GaussDB(DWS) and MySQL support using the DROP statement to delete tables. However, GaussDB(DWS) does not support the RESTRICT | CASCADE keyword in the DROP statement. DSC will delete the keywords during migration.
Input
CREATE TABLE IF NOT EXISTS `public`.`express_elb_server`(
`runoob_id` VARCHAR(10),
`runoob_title` VARCHAR(100) NOT NULL,
`runoob_author` VARCHAR(40) NOT NULL,
`submission_date` VARCHAR(10)
)ENGINE=InnoDB DEFAULT CHARSET=utf8;
DROP TABLE `public`.`express_elb_server` RESTRICT;
Output
CREATE TABLE IF NOT EXISTS "public"."express_elb_server"
(
"runoob_id" VARCHAR(40),
"runoob_title" VARCHAR(400) NOT NULL,
"runoob_author" VARCHAR(160) NOT NULL,
"submission_date" VARCHAR(40)
)
WITH ( ORIENTATION = ROW, COMPRESSION = NO )
NOCOMPRESS
DISTRIBUTE BY HASH ("runoob_id");
DROP TABLE "public"."express_elb_server";