这是一个菜鸟问题,很可能是语法问题。但是我有点迷路了...
我需要遍历 Oracle 中所有表中的所有列来生成触发脚本。该触发器应将正在更新的行插入到与原始表几乎相同的日志表中。我以为我会遍历所有列并连接字符串。相当容易,但我在语法上苦苦挣扎......
这是我到目前为止所拥有的:
DECLARE
cursor tableNames is
select table_name
from user_tables
where table_name not like '%_A';
lSql varchar2(3000);
type t_columnRow is ref cursor;
v_columns t_columnRow;
begin
FOR tableName in tableNames
LOOP
open v_columns for select COLUMN_NAME from user_tab_columns where table_name = tableName;
for columnRow in v_columns LOOP
DBMS_OUTPUT.PUT_LINE(tableName || '.' || columnRow.COLUMN_NAME);
-- Here I would just concatenate the strings ....
END LOOP;
END LOOP;
End;
为此,我收到以下错误:
Error at line 1
ORA-06550: line 14, column 84:
PLS-00382: expression is of wrong type
ORA-06550: line 16, column 22:
PLS-00221: 'V_COLUMNS' is not a procedure or is undefined
ORA-06550: line 16, column 5:
PL/SQL: Statement ignored