如何从 SQL Developer 执行过程？

Question

我有一个如下所示的存储过程以及如何从 SQL Developer 执行？

PROCEDURE CFR.GET_ALL_ERROR_HISTORY
Argument Name  Type       In/Out Default? 
-------------- ---------- ------ -------- 
T1_CURSOR      REF CURSOR OUT             
P_QUERY_TYPE   NUMBER     IN              
P_DATE_START   DATE       IN     DEFAULT  
P_DATE_END     DATE       IN     DEFAULT  
P_COMP_NUMBER   NUMBER     IN     DEFAULT  
P_COMP_GROUP_ID NUMBER     IN     DEFAULT  

在 Visual Studio 中运行我的代码时

ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'GET_ALL_ERROR_HISTORY'
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'GET_ALL_ERROR_HISTORY'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored

我的 VS 代码

    Dim oracleParameter(3) As OracleParameter
    oracleParameter(0) = New OracleParameter()
    oracleParameter(1) = New OracleParameter()
    oracleParameter(2) = New OracleParameter()
    oracleParameter(3) = New OracleParameter()

    oracleParameter(0) = cmd.Parameters.Add("T1_Cursor", dbType:=Oracle.ManagedDataAccess.Client.OracleDbType.RefCursor, ParameterDirection.Output)
    oracleParameter(1) = cmd.Parameters.Add("p_Date_Start", dbType:=Oracle.ManagedDataAccess.Client.OracleDbType.Date, val:=dteStart, ParameterDirection.Input)
    oracleParameter(2) = cmd.Parameters.Add("p_Date_End", dbType:=Oracle.ManagedDataAccess.Client.OracleDbType.Date, val:=dteEnd, ParameterDirection.Input)
    oracleParameter(3) = cmd.Parameters.Add("p_Query_Type", dbType:=Oracle.ManagedDataAccess.Client.OracleDbType.Decimal, val:=intQueryType, ParameterDirection.Input)

我是程序新手，如果您能指导我如何解决这个问题。剩下的我自己都可以解决

Answer 1

有代码方式。

在 SQL 工作表中：

begin
 CFR.GET_ALL_ERROR_HISTORY(1, sysdate, sysdate+1, 1, 2);
end;
/

Note you'll need to declare a local sys refcursor variable and supply that in the call if you want to catch the value, then you'll use the PRINT command to print the output.

这不是最佳实践，使用参数的顺序来指示为哪个输入分配什么值...最好在调用中使用命名符号，类似于

DECLARE
  P_EMP_ID NUMBER;
  P_START_DATE DATE;
  P_END_DATE DATE;
  P_JOB_ID VARCHAR2(10);
  P_DEPARTMENT_ID NUMBER;
BEGIN
  P_EMP_ID := 1;
  P_START_DATE := sysdate-365;
  P_END_DATE := sysdate;
  P_JOB_ID := 'SALES';
  P_DEPARTMENT_ID := 101;

  ADD_JOB_HISTORY(
    P_EMP_ID => P_EMP_ID,
    P_START_DATE => P_START_DATE,
    P_END_DATE => P_END_DATE,
    P_JOB_ID => P_JOB_ID,
    P_DEPARTMENT_ID => P_DEPARTMENT_ID
  );
END;
/

或

EXEC CFR.GET_ALL_ERROR_HISTORY(1,...)

还有 GUI 方式。

从树中打开过程，然后点击执行按钮。好消息是，我们会为您获取 OUT refcursor 并向您展示结果。