Preface How to rescue a dropped or truncated table online?Dropping or truncating is ddl operation which cannot be flashed back by the populare flashback tools like MyFlash,binlog2mysql,mysqldump_backup,etc.Therefore,the conventional method is…
comparison of truncate vs delete in mysql/sqlserver [duplicate] DELETE DELETE is a DML Command. DELETE statement is executed using a row lock, each row in the table is locked for deletion. We can specify filters in where clause It deletes specified…
官网:https://www.postgresql.org/docs/8.1/sql-droptable.html Name DROP TABLE -- remove a table Synopsis DROP TABLE name [, ...] [ CASCADE | RESTRICT ] Description DROP TABLE removes tables from the database. Only its owner may destroy a table. To empty…