oracle ¸ñʽ»¯Êä³öÎÊÌâ---¼±
±ÈÈç±íÀïÒ»¸ö×Ö¶ÎΪNumber(10,2)
ÏÖÔÚÎÒÏëÔÚÒ³ÃæÉÏÏÔʾºÍÊä³öµ½ÎļþÖÐÊÇСÊýºó²¹Âú0µÄ¸ñʽ
±ÈÈç 222 ÏÔʾµ½Ò³ÃæÉϺÍÊä³öµ½ÎļþÖгÉÁË222.00
111.1 ÏÔʾµ½Ò³ÃæÉϺÍÕßÊä³öµ½ÎļþÖгÉÁË111.10
ÎÒÐèÒª¼òµ¥´Ö±©µÄ·½·¨
лл
DecimalFormat decimalFormat = new DecimalFormat("#.##");
MemoryStat = decimalFormat.format(memoryUsedRate);
ͨ¹ýjavaÀ´½â¾ö¡£
²»ÊÇjava°¢ pl/sql °¢£¿£¿£¿
{{--
Ïà¹ØÎÊ´ð£º
°²×°ÁËOracle 10g£¬Ä¬Èϰ²×°ÁËorclÊý¾Ý¿â£¬Õâ¸öÊý¾Ý¿âÄܲ»ÄÜɾ³ý°¡£¬»¹ÓÐÎÒÈç¹ûн¨ÁËÆäËûÊý¾Ý¿â£¬Ôõô֪µÀÔÚwebÖеǽ²»Í¬Êý¾Ý¿âµÄµØÖ·°¡£¿
1
¿ÉÒÔɾ³ý
2
ÔÚWEBµØÖ·À¸ÖÐÊäÈëµØÖ·µÄʱºòÖ¸¶¨Ð´´½¨µÄÊý¾Ý¿âµÄIP ......
²éÁËÒ»ÌìµÄblob£¬»¹ÊÇûÀí½âµ½£¬ÎÒÏëÔÚVCÏ´æÈ¡¶þ½øÖƵÄÎļþ£¬Ê¹ÓõÄÊÇoo4o£¬ÕÕ×ŰïÖúÎĵµÉÏÃæµÄдÁËдÈëÊý¾Ý¿âµÄ´úÂ룬»¹ÊÇûд¶Ô£¬´íÎóÌáʾÊÇthis operation is not permitted on a empty LOB£¬ÕâÊÇʲôÒâ˼°¡£¿ÕÕ ......
select count(1) from FX_RETURNBOOKCHECKLIST fxreturnbo0_ where fxreturnbo0_.BOOKID='164 ' AND fxreturnbo0_.RETURNID='00025.S0000001'
ÉÏÃæÒ»¸ö¼òµ¥µÄSQL,Ö´ÐÐʱ¼ä2.6à ......
ÔÚOracle Êý¾Ý¿âÖÐÔõô²éǰÈýÌõ¼Ç¼½µÐò£»
select * from
(select * from table order by col_name desc)
where rownum<=3;
select * from
(
select s.*,rownum rn
from t3 s
)
where ......