从
This question开始,它的答案几乎就是我的答案.但我面临一些SQL查询问题,我在VB中有以下语句
Dim results As DataRow() = table.Select("A = 'foo' AND B = 'bar' AND C = 'baz'")
我想将foo,bar和baz放在变量中,并在上面的语句中使用这些变量.
Dim Varfoo As String = "foo" Dim Varbar As String = "bar" Dim Varbaz As String = "baz"
我设法在声明中得到一个变量
Dim results As DataRow() = table.Select("A = " + Varfoo)
但是如何使用变量插入多个排序表达式？
编辑：我用vikas的答案解决了以下问题;
Dim results As DataRow() = table.Select("A = '" & Varfoo & "' And B = '" & Varbar & "' And C = '" & Varbaz & "'")
解决方法
你有没有尝试过
Dim results As DataRow() = table.Select("A = '" & Varfoo & "'")
编辑
对于OR操作
Dim results As DataRow() = table.Select("A = '" & Varfoo & "' OR B = '" & Varbar & "' OR C = '" & Varbaz & "'")
用于AND操作
Dim results As DataRow() = table.Select("A = '" & Varfoo & "' AND B = '" & Varbar & "' AND C = '" & Varbaz & "'")