存储过程的实例: PROCEDURE TEST_C(temp out varchar2,a INvarchar2,b in varchar2) IS BEGIN temp:=a || b; END;
调用方法: 说明:要在程序开头加入Imports System.Data.OleDb
Dim dbConn As New OleDbConnection Dim dbComm As OleDbCommand
dbConn.ConnectionString = "Provider=MSDAORA.1;User ID=xxx;Password=xxx;Data Source=xxx;" dbConn.Open() dbComm = dbConn.CreateCommand dbComm.Parameters.Add("temp",OleDbType.VarChar,30).Direction = ParameterDirection.Output dbComm.Parameters.Add("a",30).Direction = ParameterDirection.Input dbComm.Parameters("a").Value = "test " dbComm.Parameters.Add("b",30).Direction = ParameterDirection.Input dbComm.Parameters("b").Value = "OK"
dbComm.CommandText = "{CALL TEST_C(?,?,?)}" '这里就是使用"?"来代替参数 dbComm.CommandType = CommandType.Text dbComm.ExecuteNonQuery() dbConn.Close()
MessageBox.Show(dbComm.Parameters("temp").Value) (编辑:李大同)
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