数据表选择具有多个条件的SQL Query问题

Question

从这个问题来看,它的答案几乎是我的答案.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'")

我想放在 foo, bar and baz 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 & "'")

Answer 1

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 & "'")