查詢所有空表:
select TABLE_NAME from information_schema.TABLES where TABLE_SCHEMA ='數據庫名稱' and TABLE_ROWS = 0;
查詢所有非空表:
select TABLE_NAME from information_schema.TABLES where TABLE_SCHEMA ='數據庫名稱' and TABLE_ROWS >0;
查詢當前數據庫包含某字段的所有表:
SELECT DISTINCT TABLE_NAME FROM information_schema.COLUMNS WHERE COLUMN_NAME = '字段名稱' AND TABLE_SCHEMA='數據庫名稱';