如何修复 "ORA-00950: invalid DROP option"？

Question

ORA-00950: invalid DROP option

以上是我遇到的错误。我编写了这个程序来删除 emp_1 table 中的所有索引。那么谁能帮我找出错误并解决这个错误？

CREATE OR REPLACE NONEDITIONABLE PROCEDURE sp_drop_indexes (     
  p_table_name  IN   VARCHAR2,
  p_errormsg    OUT  VARCHAR2 ) 
IS     
  v_sql VARCHAR2(1000);
  CURSOR get_indexes IS
   SELECT         index_name
   FROM           user_indexes
   WHERE          table_name = 'EMP_1';
BEGIN
   FOR rec IN get_indexes LOOP
     v_sql := 'DROP INDEX' || rec.index_name;
     EXECUTE IMMEDIATE v_sql;
   END LOOP;
EXCEPTION     
WHEN OTHERS THEN
   p_errormsg := sqlerrm; 
END sp_drop_indexes;

Answer 1

您的代码中 DROP INDEX 之后（但仍在引号内）缺少 space：

v_sql := 'DROP INDEX ' || rec.index_name;

Answer 2

确保在 DROP INDEX 关键字后包含 space：

v_sql := 'DROP INDEX ' || rec.index_name;

Answer 3

你需要一个 space after drop 索引，如果你可以有 case-sensitive 个索引名称，你需要双引号：

CREATE OR REPLACE NONEDITIONABLE PROCEDURE sp_drop_indexes (     
  p_table_name  IN   VARCHAR2,
  p_errormsg    OUT  VARCHAR2 ) 
IS     
  v_sql VARCHAR2(1000);
  CURSOR get_indexes IS
   SELECT         index_name
   FROM           user_indexes
   WHERE          table_name = 'EMP_1';
BEGIN
   FOR rec IN get_indexes LOOP
     v_sql := 'DROP INDEX "' || rec.index_name || '"';
     EXECUTE IMMEDIATE v_sql;
   END LOOP;
EXCEPTION     
WHEN OTHERS THEN
   p_errormsg := sqlerrm;
END sp_drop_indexes;
/

如何修复 "ORA-00950: invalid DROP option"？

How to fix "ORA-00950: invalid DROP option"?

sql

oracle

dynamic-sql