数据库2025年07月06日

1、 INSERT INTO table_xxx(x1,x2,x3,x4)SELECT y1,y2,y3,y4 FROM TABLE_yyy WHERE CASE WHEN y5 = m5 THEN y6 = m61 ELSE y6 = m62 END AND y7 = m7； 2、 INSERT INTO table_xxx(x1,x2,x3,x4)SE...