operandshouldcontain1colum operandshouldcontain1columns
SQL语句错误,提示:#1241 - Operand should contain 1 column(s... SQL语句错误,提示:#1241 - Operand should contain 1 column(s)错误,是因为操作的数据里查询结果没有列值,指明要查的列即可。工具/材料:以Management Studio为例。首先在桌面上,点击“Management Studio”图标。然后在