oracle ÉÏÒ»¸öÔÂ
Oracle»ñÈ¡µ±Ç°ÈÕÆÚÇ°Ò»¸öÔµÄÈ«²¿ÈÕÆÚ
1¡¢»ñÈ¡µ±Ç°Ô·ݵÄÌìÊý£ºselect to_number(to_char(last_day(sysdate),¡®dd¡®)) from dual2¡¢»ñÈ¡µ±...
oracle ²éѯµ±Ô·ݵÄÉÏÒ»¸öÔÂ
1¡¢´´½¨²âÊÔ±í£¬create table test_date_2(id int, v_date date);2¡¢²åÈë²âÊÔÊý¾Ý insert into test_date_...
OracleÈçºÎ»ñµÃÉϸöÔµÄÔ·Ý
oracle»ñµÃÉϸöÔµĵÚÒ»ÌìÈÕÆÚ£¨·ûºÏµ±µØµÄÈÕÆÚ¸ñʽ£©£ºselect data_dt ,TO_CHAR (ADD_MONTHS(TRUNC( ...
OracleÈçºÎÈ¡µ½ÉÏÒ»Ô·Ý
TRUNC(SYSDATE-30,'MM')
oracleÖÐÔõÑù»ñµÃÇ°Ò»¸öÔµÄÈÕÆÚ,±ÈÈçÏÖÔÚÊÇ3ÔÂ1ºÅ,ÎÒ...
where column between add_months(sysdate, -1) and sysdate;table ÐèÒªÌæ»»³É ÄãÒª²éѯtable name¡£column ¾ÍÊÇ ÏÂÌõ¼þµÄÀ¸Î»¡£
ÓÃoracle дһ¸ö sqlÓï¾ä ²éѯÉÏÒ»¸öÔµÄ×î´óÈÕÆÚ, - °Ù¶ÈÖª ...
Ê×ÏÈ»ñÈ¡±¾ÔµÚÒ»µãtrunc(sysdate,'mm');Õâ¸öÊÇ»ñÈ¡±¾ÔµÚÒ»ÌìµÄʱ¼ä£¬È»ºó-1¾ÍÊÇÉϸöÔÂ×îºóÒ»Ì죬ȻºóÊä³öÈÕÆÚto_char(date,'...
oracle»ñÈ¡½ñÌìµ½ÉϸöÔÂ1ºÅµÄÈÕÆÚ - - CSDNÎÊ´ð
SELECT TO_DATE('2016/04/01' , 'yyyy/mm/dd ' ) +LEVEL - 1 FROM DUAL CONNECT BY LEVEL <...
oracleÖвéѯÿ¸öÔÂ1ºÅµÄ¶©µ¥,ÈôÒ»ºÅûÓж©µ¥¾Í²éѯÉÏÒ»¸ö...
--1ºÅû¶©µ¥£¬²éѯÉÏÔÂ×îºó1±Ê¶©µ¥ select count(*) into v_count from orders where rownum=1 and o_time=(select max(o_...
oracle º¯ÊýÖÐÔõôÇó ÉÏÔÂÄ©Ìì
Select last_day(add_months(sysdate,-1)) from dual;µÃµ½ÉÏÔÂ×îºóÒ»Ìì add_months(sysdate,-1) from dual;µÃµ½¾àµ±Ç°Ê±¼äÒ»¸ö...
oracleÖÐÔõÑù»ñÈ¡µ±Ç°ÔÂÉϸöÔµĵÚÒ»ÌìºÍ×îºóÒ»Ìì?
select trunc(add_months(sysdate,-1),'mm') first_day,last_day(add_months(sysdate,-1)) last_day from dual;ÄãµÄ²éѯ...