http://download-west.oracle.com/ ... 12/d_sql.htm#998168
如果仅仅是表名的变化,或者字段个数不变,上面有人已经说了,不过dbms_sql提供了强大的功能,但使用起来复杂一些
Example 2
The following sample procedure is passed the names of a source and a destination table, and copies the rows from the source table to the destination table. This sample procedure assumes that both the source and destination tables have the following columns:
id of type NUMBER
name of type VARCHAR2(30)
birthdate of type DATE
This procedure does not specifically require the use of dynamic SQL; however, it illustrates the concepts of this package.
CREATE OR REPLACE PROCEDURE copy (
source IN VARCHAR2,
destination IN VARCHAR2) IS
id_var NUMBER;
name_var VARCHAR2(30);
birthdate_var DATE;
source_cursor INTEGER;
destination_cursor INTEGER;
ignore INTEGER;
BEGIN
-- Prepare a cursor to select from the source table:
source_cursor := dbms_sql.open_cursor;
DBMS_SQL.PARSE(source_cursor,
'SELECT id, name, birthdate FROM ' || source,
DBMS_SQL.native);
DBMS_SQL.DEFINE_COLUMN(source_cursor, 1, id_var);
DBMS_SQL.DEFINE_COLUMN(source_cursor, 2, name_var, 30);
DBMS_SQL.DEFINE_COLUMN(source_cursor, 3, birthdate_var);
ignore := DBMS_SQL.EXECUTE(source_cursor);
-- Prepare a cursor to insert into the destination table:
destination_cursor := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(destination_cursor,
'INSERT INTO ' || destination ||
' VALUES (:id_bind, :name_bind, :birthdate_bind)',
DBMS_SQL.native);
-- Fetch a row from the source table and insert it into the destination table:
LOOP
IF DBMS_SQL.FETCH_ROWS(source_cursor)>0 THEN
-- get column values of the row
DBMS_SQL.COLUMN_VALUE(source_cursor, 1, id_var);
DBMS_SQL.COLUMN_VALUE(source_cursor, 2, name_var);
DBMS_SQL.COLUMN_VALUE(source_cursor, 3, birthdate_var);
-- Bind the row into the cursor that inserts into the destination table. You
-- could alter this example to require the use of dynamic SQL by inserting an
-- if condition before the bind.
DBMS_SQL.BIND_VARIABLE(destination_cursor, ':id_bind', id_var);
DBMS_SQL.BIND_VARIABLE(destination_cursor, ':name_bind', name_var);
DBMS_SQL.BIND_VARIABLE(destination_cursor, ':birthdate_bind',
birthdate_var);
ignore := DBMS_SQL.EXECUTE(destination_cursor);
ELSE
-- No more rows to copy:
EXIT;
END IF;
END LOOP;
-- Commit and close all cursors:
COMMIT;
DBMS_SQL.CLOSE_CURSOR(source_cursor);
DBMS_SQL.CLOSE_CURSOR(destination_cursor);
EXCEPTION
WHEN OTHERS THEN
IF DBMS_SQL.IS_OPEN(source_cursor) THEN
DBMS_SQL.CLOSE_CURSOR(source_cursor);
END IF;
IF DBMS_SQL.IS_OPEN(destination_cursor) THEN
DBMS_SQL.CLOSE_CURSOR(destination_cursor);
END IF;
RAISE;
END;
/