使用集合时在oracle pl/sql中未发现异常 声明 类型EmpList是varchar2(50)索引由二进制_整数组成的表; 温度系统参考光标; v_温度varchar2(50); v_emp雇主; 开始 v_emp(1):=“gaurav”; v_emp(2):=“手动”; 从双连接逐层选择v_emp(层)的打开温度
故障原因是使用集合时在oracle pl/sql中未发现异常 声明 类型EmpList是varchar2(50)索引由二进制_整数组成的表; 温度系统参考光标; v_温度varchar2(50); v_emp雇主; 开始 v_emp(1):=“gaurav”; v_emp(2):=“手动”; 从双连接逐层选择v_emp(层)的打开温度,oracle,collections,plsql,Oracle,Collections,Plsql,故障原因是 DECLARE TYPE EmpList IS TABLE OF varchar2(50) INDEX BY BINARY_INTEGER; temp SYS_REFCURSOR; v_temp varchar2(50); v_emp EmpList; BEGIN v_emp (1) := 'gaurav'; v_emp (2) := 'manu'; open temp for select v_emp(level) from
DECLARE
TYPE EmpList IS TABLE OF varchar2(50) INDEX BY BINARY_INTEGER;
temp SYS_REFCURSOR;
v_temp varchar2(50);
v_emp EmpList;
BEGIN
v_emp (1) := 'gaurav';
v_emp (2) := 'manu';
open temp for select v_emp(level) from dual connect by level<=2;
loop
fetch temp into v_temp;
exit when temp%notfound;
DBMS_OUTPUT.put_line (v_temp);
end loop;
close temp;
--the below part works, then why not the above part dint works
for i in v_emp.first..v_emp.last
loop
dbms_output.put_line(v_emp(i));
end loop;
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line (SQLERRM);
END;
在运行时进行计算(作为一个变量),因此实际上会对要计算的所有行进行计算
v_emp(0)代码>
如果将数组更改为
v_emp(level)
正确的方法(如果您不知道)是:
然后:
create TYPE EmpList IS TABLE OF varchar2(50);
/
试试这个:
v_emp := EmpList('gaurav', 'manu');
open temp for select column_value from table(v_emp);
声明
类型EmpList是varchar2(50)索引由二进制_整数组成的表;
温度系统参考光标;
v_温度varchar2(50);
v_emp雇主;
开始
v_emp(0):='gaurav';
v_emp(1):=“手动”;
打开从dual connect by level选择v_emp(级别)的temp您在哪里声明了v_temp
?@rs:很抱歉,这是一个打字错误,已更正
v_emp := EmpList('gaurav', 'manu');
open temp for select column_value from table(v_emp);
DECLARE
TYPE EmpList IS TABLE OF varchar2(50) INDEX BY BINARY_INTEGER;
temp SYS_REFCURSOR;
v_temp varchar2(50);
v_emp EmpList;
BEGIN
v_emp (0) := 'gaurav';
v_emp (1) := 'manu';
open temp for select v_emp(level) from dual connect by level<=2;
loop
fetch temp into v_temp;
exit when temp%notfound;
DBMS_OUTPUT.put_line ('v_temp' || v_temp);
end loop;
close temp;
--the below part works, then why not the above part dint works
for i in v_emp.first..v_emp.last
loop
dbms_output.put_line(v_emp(i));
end loop;
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line (SQLERRM);
END;