Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Oracle»òsql2005·ÖÒ³

/// <summary>
        /// ·µ»Ø·ÖÒ³SQLÓï¾ä
        /// </summary>
        /// <param name="selectSql">²éѯSQLÓï¾ä</param>
        /// <param name="PageIndex">µ±Ç°Ò³Âë</param>
        /// <param name="PageSize">Ò»Ò³¶àÉÙÌõ¼Ç¼</param>
        /// <returns></returns>
        public static string getPageSplitSQL(string selectSql, int PageIndex, int PageSize)
        {
            string StartSelectSql = @" select * from (select aa.*, rownum r  from (";
            int CurrentReadRows = PageIndex * PageSize;
            int startRow = (CurrentReadRows - PageSize) < 0 ? 0 : (CurrentReadRows - PageSize);
            int endRow = CurrentReadRows == 0 ? PageSize : CurrentReadRows;
            string EndSelectSql = string.Format(") aa where rownum <= {1}) bb  where r >{0} ", startRow, endRow);
            return StartSelectSql + selectSql + EndSelectSql;
        }


Ïà¹ØÎĵµ£º

OracleϵÁУºÍ¼Æ¬µÄ´æ´¢

 OracleϵÁУºÍ¼Æ¬µÄ´æ´¢
Ò»£ºÊ²Ã´ÊÇ´ó¶ÔÏ󣬴ó¶ÔÏó»ù±¾²Ù×÷£¿
 ²Î¼ûÎÒµÄBLOG£ºOracleϵÁУºLOB´ó¶ÔÏó´¦Àí
 http://blog.csdn.net/qfs_v/archive/2008/05/21/2464599.aspx
 
¶þ£¬Í¼Æ¬µÄ´æ´¢»ò¶þ½øÖÆÎļþµÄ´æ´¢
 1£¬ÏȲåÈëÆÕͨÊý¾Ý£¬Óöµ½´ó¶ÔÏóÁÐʹÓÃempty_blob()¹¹Ôì¿ÕµÄÖ¸Õë¡£
  Àý× ......

Oracle ±í¿Õ¼ä»ù±¾²Ù×÷

 
1. ²éѯÊý¾Ý¿âÏÖÔڵıí¿Õ¼ä
select tablespace_name, file_name, sum(bytes)/1024/1024 table_size from dba_data_files group by tablespace_name,file_name;
 
2. ½¨Á¢±í¿Õ¼ä
CREATE TABLESPACE data01 DATAFILE '/oracle/ ......

ÈçºÎÕýȷɾ³ýORACLE¹éµµÈÕÖ¾Îļþ

 ÎÒÃǶ¼¶¼ÖªµÀÔÚcontrolfileÖмǼ×Åÿһ¸öarchivelogµÄÏà¹ØÐÅÏ¢£¬µ±È»ÃÇÔÚOSϰÑÕâЩÎïÀíÎļþdeleteµôºó£¬ÔÚÎÒÃǵÄ
controlfileÖÐÈÔÈ»¼Ç¼×ÅÕâЩarchivelogµÄÐÅÏ¢£¬ÔÚoracleµÄOEM¹ÜÀíÆ÷ÖÐÓпÉÊÓ»¯µÄÈÕÖ¾Õ¹ÏÖ³ö£¬µ±ÎÒÃÇÊÖ¹¤Çå³ýarchiveĿ¼ÏµÄÎļþºó£¬ÕâЩ¼Ç¼²¢Ã»Óб»ÎÒÃÇ´ÓcontrolfileÖÐÇå³ýµô£¬Ò²¾ÍÊÇoracle²¢²» ......

OracleÊý¾Ý¿â½µµÍHWMµÄ¼¸ÖÖ·½·¨

HWMÊÇoracleÖÐblockÓÐûÓÐʹÓõķֽçÏߣ¬Ëü»áËæ×ÅÊý¾ÝµÄinsert¶øÉÏÉý£¬µ«Ëü²¢²»»áËæÊý¾ÝµÄdelete¶øÏ½µ£¬Òò´ËÈ«±íɨÃèµÄʱ¼ä²¢²»ÒòÊý¾ÝµÄdelete¶ø¼õÉÙ£¬Ïà·´¿ÉÄÜÓÉÓÚ¿éÇå³ý·´¶øÈ«±íɨÃèʱ¼äÔö¼Ó£¬¿ÉÒÔÓÃÏÂÃæ·½·¨µÄÈÎÒ»Ò»ÖÖÀ´½µµÍHWM£º
µÚÒ»ÖÖ£ºshrink
ÊÊÓÃÓÚ10gÒÔºóµÄ°æ±¾£¬Ç°ÌáÊÇÕâ¸ö±í£¬Ë÷Òý£¬ÎﻯÊÓͼ»òÎﻯÊÓͼlogËùÔ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ