在sqlplus下经常会遇到这种问题：查询结果中包含有许多列，在一行内不能完全显示
sqlplus就自动换行，导致输出非常混乱，可读性很差，Tom写了个以列形式显示每行
的程序，我稍稍改动了一下，增加了显示每行行号。
该程序中使用了调用者权限属性，即调用者调用该过程查看的表是调用者自己的表，而
不是过程定义者所属的表
注意：最好把输出缓存设置得大一些，免得报错
ORA-20000: ORU-10027: buffer overflow,limit of 2000 bytes
set serveroutput on size 10000000
CREATE OR REPLACE PROCEDURE print_table( p_query in varchar2 )
AUTHID CURRENT_USER
/*Author : Tom Kyte
Last update: yaanzy
*/
IS
l_theCursor integer default dbms_sql.open_cursor;
l_columnValue varchar2(4000);
l_statusinteger;
l_descTbl dbms_sql.desc_tab;
l_colCntnumber;
l_rowCntnumber:=1;
BEGIN
dbms_sql.parse(l_theCursor,p_query, dbms_sql.native );
dbms_sql.describe_columns( l_theCursor, l_colCnt, l_descTbl);
for i in 1 .. l_colCnt loop
dbms_sql.define_column(l_theCursor, i, l_columnValue, 4000);
end loop;
l_status := dbms_sql.execute(l_theCursor);
while ( dbms_sql.fetch_rows(l_theCursor) > 0 ) loop
for i in 1 .. l_colCnt loop
dbms_sql.column_value( l_theCursor, i, l_columnValue );
dbms_output.put_line( rpad( l_descTbl(i).col_name, 30 )
|| ': ' ||
l_columnValue );
end loop;
dbms_output.put_line( '[Row:'||l_rowCnt||']---------------------------------------------------' );
l_rowCnt := l_rowCnt + 1;
end loop;
EXCEPTION
when others then
dbms_sql.close_cursor( l_theCursor );
RAISE;
END print_table;
下面是一个实际输出的例子：
SQL> exec print_table('select * from user_objects where rownum <=6');
OBJECT_NAME
: AAA
SUBOBJECT_NAME
:
OBJECT_ID
: 36130
DATA_OBJECT_ID
: 36130
OBJECT_TYPE
: TABLE
CREATED
: 2005-03-30 09:23:27
LAST_DDL_TIME
: 2005-03-30 09:23:27
TIMESTAMP
: 2005-03-30:09:23:27
STATUS
: VALID
TEMPORARY
: N
GENERATED
: N
SECONDARY
: N
[Row:1]---------------------------------------------------
OBJECT_NAME
: CP
SUBOBJECT_NAME
:
OBJECT_ID
: 35821
DATA_OBJECT_ID
: 35821
OBJECT_TYPE
: TABLE
CREATED
: 2005-03-09 17:30:45
LAST_DDL_TIME
: 2005-03-09 17:30:45
TIMESTAMP
: 2005-03-09:17:30:45
STATUS
: VALID
TEMPORARY
: N
GENERATED
: N
SECONDARY
: N
[Row:2]---------------------------------------------------
OBJECT_NAME
: INDEX_ORDER_USER_3
SUBOBJECT_NAME
:
OBJECT_ID
: 35636
DATA_OBJECT_ID
: 35636
OBJECT_TYPE
: INDEX
CREATED
: 2005-02-23 12:06:43
LAST_DDL_TIME
: 2005-02-23 12:06:43
TIMESTAMP
: 2005-02-23:12:06:43
STATUS
: VALID
TEMPORARY
: N
GENERATED
: N
SECONDARY
: N
[Row:3]---------------------------------------------------
OBJECT_NAME
: INDEX_ORDER_USER_5
SUBOBJECT_NAME
:
OBJECT_ID
: 35637
DATA_OBJECT_ID
: 35637
OBJECT_TYPE
: INDEX
CREATED
: 2005-02-23 12:06:50
LAST_DDL_TIME
: 2005-02-23 12:06:50
TIMESTAMP
: 2005-02-23:12:06:50
STATUS
: VALID
TEMPORARY
: N
GENERATED
: N
SECONDARY
: N
[Row:4]---------------------------------------------------
OBJECT_NAME
: IND_MPN_SEG
SUBOBJECT_NAME
:
OBJECT_ID
: 35960
DATA_OBJECT_ID
: 35960
OBJECT_TYPE
: INDEX
CREATED
: 2005-03-14 11:17:50
LAST_DDL_TIME
: 2005-03-14 11:17:50
TIMESTAMP
: 2005-03-14:11:17:50
STATUS
: VALID
TEMPORARY
: N
GENERATED
: N
SECONDARY
: N
[Row:5]---------------------------------------------------
OBJECT_NAME
: IND_SEND_DONE_LOG_20050216
SUBOBJECT_NAME
:
OBJECT_ID
: 35483
DATA_OBJECT_ID
: 35483
OBJECT_TYPE
: INDEX
CREATED
: 2005-02-17 09:41:03
LAST_DDL_TIME
: 2005-02-17 09:41:03
TIMESTAMP
: 2005-02-17:09:41:03
STATUS
: VALID
TEMPORARY
: N
GENERATED
: N
SECONDARY
: N
[Row:6]---------------------------------------------------
PL/SQL procedure successfully completed. |
