Question

DELETE FROM MYTABLE WHERE ID = 1 and NAME ='xyz';
DELETE FROM MYTABLE WHERE ID = 2 and NAME ='abc';
DELETE FROM MYTABLE WHERE ID = 3 and NAME ='abc';

我有多个上面提到的删除声明。如何在较少的语句中删除它们。我必须写100个删除语句吗？

Answer 1

你可以这样做：

cmd='find ~ | head -3 | while read f; do out=$(dirname ${f}); echo ${out}; done'
echo $cmd

Answer 2

您可以使用IN：

DELETE FROM MYTABLE
WHERE (ID, NAME) IN (SELECT 1 AS ID, 'xyz' AS NAME FROM dual UNION ALL
                     SELECT 2 AS ID, 'abc' AS NAME FROM dual UNION ALL
                     SELECT 3 AS ID, 'abc' AS NAME FROM dual);

当然，在子查询中，您可以使用任何select（例如来自全局临时表）。

Answer 3

DELETE FROM MYTABLE 
  WHERE ID IN (1, 2, 3) AND NAME IN ('XYZ', 'ABC');

如果您的ID字段是唯一的，请使用：

DELETE FROM MYTABLE WHERE ID IN (1, 2, 3);

删除oracle中的多行

3 个答案: