Question

好的，我有一个问题：

.done

问题是此查询正在更新UPDATE example_table SET some_column = :some_data, else_column = :else_data; asd_column = :asd_data, xyz_column = :xyz_data, abc_column = :abc_column, qwe_column = :qwe_column, fgh_column = :fgh_column, tyu_column = :tyu_column, bnm_column = :bnm_column WHERE id = :user LIMIT 1 $p->bindParam(':user', $this->id, PDO::PARAM_STR); $p->bindParam(':some_column', $this->some_column, PDO::PARAM_INT); $p->bindParam(':else_column ', $this->else_column, PDO::PARAM_STR); $p->bindParam(':asd_column ', $this->asd_column, PDO::PARAM_INT); $p->bindParam(':xyz_column', $this->xyz_column, PDO::PARAM_STR); $p->bindParam(':abc_column', $this->abc_column, PDO::PARAM_INT); $p->bindParam(':qwe_column', $this->qwe_column, PDO::PARAM_INT); $p->bindParam(':fgh_column', $this->fgh_column, PDO::PARAM_INT); $p->bindParam(':tyu_column', $this->tyu_column, PDO::PARAM_INT); $p->bindParam(':bnm_column', $this->bnm_column, PDO::PARAM_STR);中的每条记录当然，我检查它只执行一次因为example_table是有效的，并且它被解析为查询这是唯一的条件。

我不知道是什么导致了这个问题，任何建议，也许有人有类似的问题。

Answer 1

因为你的陈述中间有分号（靠近else_column = :else_data;）

UPDATE  example_table
SET     some_column = :some_data,
        else_column = :else_data;
        asd_column = :asd_data,
        xyz_column = :xyz_data,
        abc_column = :abc_column,
        qwe_column = :qwe_column,
        fgh_column = :fgh_column,
        tyu_column = :tyu_column,
        bnm_column = :bnm_column
WHERE   id = :user LIMIT 1

将以

执行

UPDATE  example_table
SET     some_column = :some_data,
        else_column = :else_data;

虽然应该是这样的

UPDATE  example_table
SET     some_column = :some_data,
        else_column = :else_data,
        asd_column = :asd_data,
        xyz_column = :xyz_data,
        abc_column = :abc_column,
        qwe_column = :qwe_column,
        fgh_column = :fgh_column,
        tyu_column = :tyu_column,
        bnm_column = :bnm_column
WHERE   id = :user

Answer 2

将; ::

替换为假,

（注意：更新语句中的ORDER BY和LIMIT 1是mysql扩展或错误。在任何一种情况下，都不保证受影响的行的顺序）

UPDATE  example_table
SET     some_column = :some_data,
        else_column = :else_data, -- << HERE!
        asd_column = :asd_data,
        xyz_column = :xyz_data,
        abc_column = :abc_column,
        qwe_column = :qwe_column,
        fgh_column = :fgh_column,
        tyu_column = :tyu_column,
        bnm_column = :bnm_column
WHERE   id = :user LIMIT 1
      ;

对表中的每条记录执行MySql查询

2 个答案: