vb.net - 如何在对象命令的 CommandText 中加入 DML 语句

Question

为了从 SQL Server 数据库中获取数据，我可以使用如下代码

Dim sql As String = "SELECT emp_id, emp_name FROM emp; SELECT dep_id, dep_name FROM department;"
Dim da As New SqlClient.SqlDataAdapter(sql, connString)
Dim ds As New DataSet("Data")

da.Fill(ds)

我将在ds数据集中得到两个表。如何为 Oracle 数据库编写相同的代码？我尝试按上述方式编写代码，但收到错误消息。ORA-00911: 无效字符

此外，我还想使用 DELETE 语句。例如

Dim sql As String = "DELETE FROM emp WHERE emp_id = 1; DELETE FROM department WHERE dep_id = 4"
Dim cmd As New SqlCommand(sql, conn)
cmd.ExecuteNonQuery()

谢谢你。

Answer 1

为了通过 Command 对象执行多个 DML 语句，这些语句必须放在块BEGIN ... END中。例如

Dim sql As String = "BEGIN DELETE FROM emp WHERE emp_id = 1; DELETE FROM department WHERE dep_id = 4; End;"
...