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Question

日期時間，我查詢用下面的代碼Oracle數據庫：

SET pagesize 0 
SET linesize 250 
SET wrap ON 
SET colsep , 
SET trims ON 
SET truncate OFF 
SET FEEDBACK OFF 
COLUMN col1 format a6 
COLUMN col2 format a4 
COLUMN col3 format 9999.999 
spool /var/tmp/test.dat 
SELECT /*+ parallel(8) */ 
     col1, 
     col2, 
     col3 
FROM table; 
spool off 
exit 

我想要的輸出文件是： YYYYMMDDHHMMSS_test.dat

什麼是最好做到這一點？

Answer 1

請嘗試以下操作。該解決方案已從Tom Kyte's discussion改編而來。

SET pagesize 0 
SET linesize 250 
SET wrap ON 
SET colsep , 
SET trims ON 
SET truncate OFF 
SET FEEDBACK OFF 
COLUMN col1 format a6 
COLUMN col2 format a4 
COLUMN col3 format 9999.999 
SET ECHO ON 
COLUMN filename new_val filename 
SELECT to_char(sysdate, 'YYYYMMDDHH24MISS') || '_test.dat' filename from dual; 
SPOOL &filename 
SELECT /*+ parallel(8) */ 
     col1, 
     col2, 
     col3 
FROM table; 
spool off 
exit