执行目录操作
若要执行对数据库或编录进行修改的命令(如 CREATE TABLE 或 CREATE PROCEDURE 语句),请使用相应的 SQL 语句和 Connection 对象创建一个 Command 对象。 使用 Command 对象的 ExecuteNonQuery 方法来执行该命令。
以下代码示例在 Microsoft SQL Server 数据库中创建一个存储过程。
' Assumes connection is a valid SqlConnection.
Dim queryString As String = "CREATE PROCEDURE InsertCategory " & _
"@CategoryName nchar(15), " & _
"@Identity int OUT " & _
"AS " & _
"INSERT INTO Categories (CategoryName) VALUES(@CategoryName) " & _
"SET @Identity = @@Identity " & _
"RETURN @@ROWCOUNT"
Dim command As SqlCommand = New SqlCommand(queryString, connection)
command.ExecuteNonQuery()
// Assumes connection is a valid SqlConnection.
string queryString = "CREATE PROCEDURE InsertCategory " +
"@CategoryName nchar(15), " +
"@Identity int OUT " +
"AS " +
"INSERT INTO Categories (CategoryName) VALUES(@CategoryName) " +
"SET @Identity = @@Identity " +
"RETURN @@ROWCOUNT";
SqlCommand command = new SqlCommand(queryString, connection);
command.ExecuteNonQuery();