CREATE OR REPLACE PROCEDURE DT_CHEMICALLIST TYPE T_CURSOR IS REF CURSOR; BEGIN open T_CURSOR for select * from chemicallist; close T_CURSOR; commit; END DT_CHEMICALLIST; 请问我这个个过程哪错了?
CREATE OR REPLACE PROCEDURE DT_CHEMICALLIST TYPE T_CURSOR IS REF CURSOR; test_cur T_CURSOR; BEGIN open test_cur for select * from chemicallist; close test_cur; commit; END DT_CHEMICALLIST;T_CURSOR只是游标变量类型!
还是不行啊 我在toad的sqleditor里执行没有反映啊
CREATE OR REPLACE PROCEDURE DT_CHEMICALLIST ISTYPE T_CURSOR IS REF CURSOR; test_cur T_CURSOR; BEGIN open test_cur for select * from chemicallist;close test_cur; commit; END DT_CHEMICALLIST;
CREATE OR REPLACE package pkg_test as /* 定义ref cursor类型 不加return类型,为弱类型,允许动态sql查询, 否则为强类型,无法使用动态sql查询; */ type myrctype is ref cursor; --函数申明 function get(intID number) return myrctype; end pkg_test; /CREATE OR REPLACE package body pkg_test as --函数体 function get(intID number) return myrctype is rc myrctype; --定义ref cursor变量 sqlstr varchar2(500); begin if intID=0 then --静态测试,直接用select语句直接返回结果 open rc for select * from t_orgkind; else --动态sql赋值,用:w_id来申明该变量从外部获得 sqlstr := 'select * from t_orgkind where org_kindid=:w_id'; --动态测试,用sqlstr字符串返回结果,用using关键词传递参数 open rc for sqlstr using intid; end if; return rc; end get;end pkg_test; /create or replace procedure p_test(intID number , retrc out pkg_test.myrctype) as sqlstr varchar2(500); begin if intID=0 then --静态测试,直接用select语句直接返回结果 open retrc for select * from t_orgkind; else --动态sql赋值,用:w_id来申明该变量从外部获得 sqlstr := 'select * from t_orgkind where org_kindid=:w_id'; --动态测试,用sqlstr字符串返回结果,用using关键词传递参数 open retrc for sqlstr using intid; end if; end; /3、用pl/sql块进行测试: declare w_rc pkg_test.myrctype; --定义ref cursor型变量 --定义临时变量,用于显示结果 w_orgkind t_orgkind%ROWTYPE;begin --调用函数,获得记录集 w_rc := pkg_test.get(0); loop --fetch结果并显示 fetch w_rc into w_orgkind; exit when w_rc%NOTFOUND; dbms_output.put_line(to_char(w_orgkind.org_kindid,'999')||' '||w_orgkind.org_kind); end loop; end; /declare w_rc pkg_test.myrctype; --定义ref cursor型变量 --定义临时变量,用于显示结果 w_orgkind t_orgkind%ROWTYPE;begin --调用函数,获得记录集 p_test(0,w_rc); loop --fetch结果并显示 fetch w_rc into w_orgkind; exit when w_rc%NOTFOUND; dbms_output.put_line(to_char(w_orgkind.org_kindid,'999')||' '||w_orgkind.org_kind); end loop; end; /
我加了is了,可是我在toad里面看创建好的过程,前面有个红叉啊
1.定义一个table类型的变量 type arrVarchar is table of VARCHAR2(30000) index by binary_integer; 2.定义输出变量为该类型 procedure NLSK0310(arrSASIZ_NO OUT arrVarchar) 3.再把所需的数据集fetch到这个变量里面。
TYPE T_CURSOR IS REF CURSOR;
BEGIN
open T_CURSOR for select * from chemicallist; close T_CURSOR;
commit;
END DT_CHEMICALLIST;
请问我这个个过程哪错了?
TYPE T_CURSOR IS REF CURSOR;
test_cur T_CURSOR;
BEGIN
open test_cur for select * from chemicallist; close test_cur;
commit;
END DT_CHEMICALLIST;T_CURSOR只是游标变量类型!
我在toad的sqleditor里执行没有反映啊
test_cur T_CURSOR;
BEGIN
open test_cur for select * from chemicallist;close test_cur;
commit;
END DT_CHEMICALLIST;
package pkg_test as
/* 定义ref cursor类型
不加return类型,为弱类型,允许动态sql查询,
否则为强类型,无法使用动态sql查询;
*/
type myrctype is ref cursor; --函数申明
function get(intID number) return myrctype;
end pkg_test;
/CREATE OR REPLACE
package body pkg_test as
--函数体
function get(intID number) return myrctype is
rc myrctype; --定义ref cursor变量
sqlstr varchar2(500);
begin
if intID=0 then
--静态测试,直接用select语句直接返回结果
open rc for select * from t_orgkind;
else
--动态sql赋值,用:w_id来申明该变量从外部获得
sqlstr := 'select * from t_orgkind where org_kindid=:w_id';
--动态测试,用sqlstr字符串返回结果,用using关键词传递参数
open rc for sqlstr using intid;
end if; return rc;
end get;end pkg_test;
/create or replace procedure p_test(intID number , retrc out pkg_test.myrctype) as
sqlstr varchar2(500);
begin
if intID=0 then
--静态测试,直接用select语句直接返回结果
open retrc for select * from t_orgkind;
else
--动态sql赋值,用:w_id来申明该变量从外部获得
sqlstr := 'select * from t_orgkind where org_kindid=:w_id';
--动态测试,用sqlstr字符串返回结果,用using关键词传递参数
open retrc for sqlstr using intid;
end if;
end;
/3、用pl/sql块进行测试:
declare
w_rc pkg_test.myrctype; --定义ref cursor型变量 --定义临时变量,用于显示结果
w_orgkind t_orgkind%ROWTYPE;begin
--调用函数,获得记录集
w_rc := pkg_test.get(0);
loop
--fetch结果并显示
fetch w_rc into w_orgkind;
exit when w_rc%NOTFOUND;
dbms_output.put_line(to_char(w_orgkind.org_kindid,'999')||' '||w_orgkind.org_kind);
end loop;
end;
/declare
w_rc pkg_test.myrctype; --定义ref cursor型变量 --定义临时变量,用于显示结果
w_orgkind t_orgkind%ROWTYPE;begin
--调用函数,获得记录集
p_test(0,w_rc);
loop
--fetch结果并显示
fetch w_rc into w_orgkind;
exit when w_rc%NOTFOUND;
dbms_output.put_line(to_char(w_orgkind.org_kindid,'999')||' '||w_orgkind.org_kind);
end loop;
end;
/
type arrVarchar is table of VARCHAR2(30000) index by binary_integer;
2.定义输出变量为该类型
procedure NLSK0310(arrSASIZ_NO OUT arrVarchar)
3.再把所需的数据集fetch到这个变量里面。