Question

我写了以下程序

create or replace procedure sp_abc_profile 
(
  f_symbol_in abc.colname%TYPE
)
is profile abc%rowtype;
is profile2 abc2%rowtype;
begin
  SELECT fname, lname,mname,age
    INTO profile
  FROM abc
  WHERE f_symbol = f_symbol_in;

  SELECT initiaiinvestment AS minInitialInvestment, pr as qt, class1 as clss
    into profile2
  FROM 
      abc2 
  WHERE f_symbol = f_symbol_in;
end;

执行上述后，我收到如下错误消息：

错误（7,3）：PL / SQL：忽略SQL语句

错误（21,5）：PL / SQL：ORA-00913：值太多

我不想选择两个表中的所有行。

如何在过程中编写多个select语句，以便过程中的每个select语句都返回一个结果集。

Answer 1

尝试以下方法：

is
profile abc.fname%type;
profile2 abc2.initiaiinvestment%type;

在过程中有多个select语句没有问题。它与所选列和PL / SQL类型不匹配。

除此之外，您的代码中似乎有太多is。

有关使用select into的详情，请点击此链接：Oracle PL/SQL "select into" clause

Answer 2

试试这个我们可以在程序中有多个select语句：

您的代码中存在太多价值问题。

create or replace procedure sp_abc_profile 
(
  f_symbol_in abc.colname%TYPE
)
is profile abc.fname%type;
is profile2 abc2.initiaiinvestment%type;
begin
  SELECT fname
    INTO profile
  FROM abc
  WHERE f_symbol = f_symbol_in;

  SELECT initiaiinvestment into profile2
  FROM 
      abc2 
  WHERE f_symbol = f_symbol_in;
end;

Answer 3

正如其他人指出你有太多“是”的陈述。

执行select into a row变量时，需要选择所有内容：

select *
into profile
from abc
where f_symbol = f_symbol_in;

select *
into profile2
from abc2
where f_symbol = f_symbol_in;

当你在f_symbol_in上有多个匹配项时，你也冒着抛出异常的风险。您的代码可以捕获此异常，或者您可以限制行数（即rownum＆lt; = 1），或者查看集合以加载与参数匹配的所有行。

Answer 4

解决方案是在oracle中使用CURSORS，以便过程中的每个select语句都返回一个结果集。

然后可以使用您首选的脚本语言遍历该结果集以获得所需的输出。

create or replace 
procedure sp_abc_profile
(
  symbol_in in tablename.fieldname%type,
  cursor1 out SYS_REFCURSOR,
  cursor2 out SYS_REFCURSOR,
)
as
begin


    open cursor1 for
         {your select statement here}


    open cursor2 for
        {your second select statement here}


end sp_abc_profile;

Answer 5

删除多余的“IS”
添加：ROWNUM = 1

create or replace procedure sp_abc_profile 
(
  f_symbol_in abc.colname%TYPE
)
is profile abc%rowtype;
/*is*/ profile2 abc2%rowtype;
begin
  SELECT fname, lname,mname,age
    INTO profile
  FROM abc
  WHERE f_symbol = f_symbol_in
  AND ROWNUM = 1;

  SELECT initiaiinvestment AS minInitialInvestment, pr as qt, class1 as clss
    into profile2
  FROM 
      abc2 
  WHERE f_symbol = f_symbol_in
  AND ROWNUM = 1;
end;

我如何在oracle过程中运行多个select语句

5 个答案: