【发布时间】：2021-01-23 03:52:15
【问题描述】：
以下过程在 ctrll + S 上成功编译（显示 VALID），但在执行时抛出错误：Invalid character error 同时在 SQL DEVELOPER 上执行此 procedure。
我没有看到任何我有无效字符的地方。
以下是创建表和插入值的代码：-
CREATE TABLE tempt( "set" VARCHAR2(1), "level" VARCHAR2(1), category VARCHAR2(3), value INT );
INSERT INTO tempt
SELECT 'A', 'Z', 'ABC', 847549 FROM dual UNION ALL
SELECT 'A', 'Y', 'ABC', 955808 FROM dual UNION ALL
SELECT 'A', 'X', 'ABC', 983462 FROM dual UNION ALL
SELECT 'A', 'Z', 'GHI', 762369 FROM dual UNION ALL
SELECT 'A', 'Y', 'DEF', 615863 FROM dual UNION ALL
SELECT 'A', 'X', 'DEF', 474257 FROM dual UNION ALL
SELECT 'B', 'Z', 'ABC', 959843 FROM dual UNION ALL
SELECT 'B', 'Y', 'ABC', 821704 FROM dual UNION ALL
SELECT 'B', 'X', 'ABC', 377211 FROM dual UNION ALL
SELECT 'B', 'Z', 'DEF', 945053 FROM dual UNION ALL
SELECT 'B', 'Y', 'DEF', 919120 FROM dual UNION ALL
SELECT 'B', 'Y', 'ABC', 821704 FROM dual UNION ALL
SELECT 'C', 'X', 'ABC', 377211 FROM dual UNION ALL
SELECT 'C', 'Z', 'DEF', 945053 FROM dual UNION ALL
SELECT 'C', 'Y', 'DEF', 919120 FROM dual UNION ALL
SELECT 'D', 'X', 'ABC', 377211 FROM dual UNION ALL
SELECT 'D', 'Z', 'DEF', 945053 FROM dual UNION ALL
SELECT 'D', 'Y', 'GHI', 919120 FROM dual UNION ALL
SELECT 'E', 'X', 'ABC', 377211 FROM dual UNION ALL
SELECT 'E', 'Z', 'DEF', 945053 FROM dual UNION ALL
SELECT 'E', 'Y', 'ABC', 919120 FROM dual UNION ALL
SELECT 'E', 'Z', 'ABC', 945053 FROM dual UNION ALL
SELECT 'E', 'Y', 'DEF', 919120 FROM dual UNION ALL
SELECT 'B', 'X', 'IJK', 326886 FROM dual
这是在 SQL Developer/DB 的过程窗口中运行的：-
CREATE OR REPLACE PROCEDURE "SCHEMA.pivot"(v_recordset out sys_refcursor)
AS
--v_recordset SYS_REFCURSOR;
v_sql long;
v_cols_1 long;
v_cols_2 clob;
BEGIN
SELECT LISTAGG( ''''||"level"||''' AS "'||"level"||'"' , ',' )
WITHIN GROUP ( ORDER BY "level" DESC )
INTO v_cols_1
FROM (
SELECT DISTINCT "level"
FROM tempt
);
SELECT DBMS_XMLGEN.CONVERT (
RTRIM (
XMLAGG (XMLELEMENT (
e,
'MAX(CASE WHEN CATEGORY = '
|| CHR (39)
|| CATEGORY
|| CHR (39)
|| ' THEN '
|| CHR (39)
|| "level"
|| CHR (39)
|| ' END) AS '
|| "level"
|| '_'
|| CATEGORY
|| '',
',')
ORDER BY 1 DESC).EXTRACT ('//text()').getclobval (),
','))
INTO v_cols_2
FROM (SELECT DISTINCT "level", CATEGORY
FROM tempt);
v_sql :=
'SELECT "set", ('|| v_cols_2 ||')
FROM
(
SELECT *
FROM tempt
PIVOT
(
MAX(value) FOR "level" IN ( '|| v_cols_1 ||' )
)
)
GROUP BY "set"
ORDER BY "set"';
v_sql := REPLACE (v_sql, ''', CHR (39));
DBMS_OUTPUT.PUT_LINE(v_sql);
OPEN v_recordset FOR v_sql;
end pivot;
编辑 1：我运行了答案中提供的查询，尽管编译成功我得到了 Invalid Character
错误：-
00911. 00000 - "invalid character" *Cause: identifiers may not start with any ASCII character other than letters and numbers. $#_ are also allowed after the first character. Identifiers enclosed by doublequotes may contain any character other than a doublequote. Alternative quotes (q'#...#') cannot use spaces, tabs, or carriage returns as delimiters. For all other contexts, consult the SQL Language Reference Manual.
我看过其他有相同问题的帖子，并尝试了所有方法，但似乎没有解决问题。它显示的错误行是OPEN v_recordset FOR v_sql;
【问题讨论】：
标签： stored-procedures plsql oracle11g oracle-sqldeveloper listagg