不使用工具的 SQL Server 过程到 Oracle 过程

Question

有人可以帮助和指导我将以下 SQL Server 过程转换为 Oracle 过程吗？

CREATE PROCEDURE proc1 AS
BEGIN
    DECLARE @table1 TABLE (currency_id INT, amt_total_exp DECIMAL(18,4));
    DECLARE @table2 TABLE (contract_id INT);

    INSERT INTO @table2
        EXEC someProcedure 28, '28-11-2020';

    INSERT INTO @table1
        SELECT currency_id, SUM(amount_direct_exposure)
        FROM someTable d
        INNER JOIN @table2 c ON d.contract_id = c.contract_id   
        GROUP BY currency_id;

    SELECT * FROM @table1
END

SomeProcedure will provide result as follows

 contract_id
-------------
1
2
3
4
5

Someprocedure 中的日期参数用于列出特定方在该日期之前处于活动状态的contract_id

SomeProcedure 与@table1 无关。 @table1 用于保存 Someprocedure 的结果，以便在插入 @table2 时使用。

Proc1 在 SQL Server 中运行良好。我已经测试过了

Answer 1

如果您发布示例数据以及 someprocedure 应该做什么，将会有所帮助。我猜它会将这些值插入table2，但是 - date 在这里做什么？不知道，所以省略了。

我建议一个接受（至少一个）参数的过程：par_contract_id。它使程序可重用；使用硬编码的值，您只能使用一次（即使用硬编码的值集）。

类似这样的：

SQL> create or replace procedure proc1 (par_contract_id in number) as
  2  begin
  3    insert into table1 (currency_id, amt_total_exp)
  4      select s.currency_id,
  5             sum(s.amount_direct_exposure)
  6      from sometable s
  7      where s.contract_id = par_contract_id
  8      group by s.currency_id;
  9  end;
 10  /

Procedure created.

假设sometable 看起来像这样：

SQL> select * from sometable;

CONTRACT_ID AMOUNT_DIRECT_EXPOSURE CURRENCY_ID
----------- ---------------------- -----------
          1                    100         225
          1                    500         225
          2                    200         382

将contract_id = 1 传递给过程，它应该对100 + 500 求和并在table1 中插入一行：

SQL> begin
  2    proc1(1);
  3  end;
  4  /

PL/SQL procedure successfully completed.

SQL> select * from table1;

CURRENCY_ID AMT_TOTAL_EXP
----------- -------------
        225           600

SQL>

Answer 2

可以参考以下

--1./创建两个临时全局的表-------

create global temporary table table1 (currency_id number, amt_total_exp number);
on commit delete rows;

create global temporary table table2 (contract_id number);
on commit delete rows;

--2./ 创建产品 ----------

CREATE PROCEDURE proc1 AS
    V_contract_id number;
BEGIN

    V_contract_id := someProcedure(28, '28-11-2020');

    INSERT INTO table2
    (
        contract_id
    )
    VALUE 
    (
        V_contract_id
    );

    INSERT INTO table1
    SELECT currency_id, SUM(amount_direct_exposure)
    FROM 
    someTable d
    table2 c  
    WHERE 1=1 AND d.contract_id = c.contract_id  
    GROUP BY currency_id;

    --Output log --------------------------------
    FOR I IN (SELECT * FROM table1)
    LOOP
        DBMS_OUTPUT.PUT_LINE('currency_id: ' || I.currency_id);
        DBMS_OUTPUT.PUT_LINE('amt_total_exp: ' || I.amt_total_exp);
    END LOOP;

    COMMIT;
END;