Question

我正在尝试通过Adminer 4.6.2的查询运行他，它给我模糊的“语法错误”，没有更多详细信息：

 db_query("DELETE FROM {field_collection_item} WHERE field_name NOT IN (SELECT field_name FROM {field_config} WHERE type = 'field_collection')");

我也尝试过这个：

DELETE FROM {field_collection_item} WHERE field_name NOT IN (SELECT field_name FROM {field_config} WHERE type = 'field_collection')

但它返回相同的语法错误。

Answer 1

请勿使用双引号，而应使用2个单引号''，过滤条件要求将值括在单引号中。验证代码始终是一个好习惯，您可以使用Print @sql

EX：

DECLARE @sql VARCHAR(max)

SET @sql = 'DELETE FROM [field_collection_item] WHERE field_name
               NOT IN (SELECT field_name FROM [field_config] WHERE type = ''field_collection'')'

PRINT @sql

打印：

    DELETE FROM [field_collection_item] WHERE field_name NOT IN 
   (SELECT field_name FROM [field_config] WHERE type = 'field_collection')

SQL语法错误db_query

1 个答案: