oracle splitº¯Êý
CREATE OR REPLACE TYPE ty_str_array IS TABLE OF VARCHAR2 (4000);
CREATE OR REPLACE FUNCTION fn_split (p_str IN VARCHAR2, p_delimiter IN VARCHAR2)
RETURN ty_str_split
IS
j INT := 0;
i INT := 1;
len INT := 0;
len1 INT := 0;
str VARCHAR2 (4000);
str_split ty_str_array := ty_str_array ();
BEGIN
len := LENGTH (p_str);
len1 := LENGTH (p_delimiter);
WHILE j < len
LOOP
j := INSTR (p_str, p_delimiter, i);
IF j = 0
THEN
j := len;
str := SUBSTR (p_str, i);
str_split.EXTEND;
str_split (str_split.COUNT) := str;
IF i >= len
THEN
EXIT;
END IF;
ELSE
str := SUBSTR (p_str, i, j - i);
i := j + len1;
str_split.EXTEND;
str_split (str_split.COUNT) := str;
END IF;
END LOOP;
Ïà¹ØÎĵµ£º
ÔÚwindows ÏÂÅäÖÃPHPʹÓÃORACLEÊý¾Ý¿âÒªµã
ÔÚwindowÏ£¬¾³£ÓÃapache + PHP À´×öÓ¦ÓÃÆ½Ì¨£¬µ«ÊÇÈç¹ûʹÓÃoracle×öºǫ́Êý¾Ý¿â£¬µ«ÓÖûÓа²×°ÓÐoracle¿Í»§¶Ë£¬ÏÂÃæµÄÅäÖÿÉÒԲο¼
1¡¢ÔÚûÓа²×°oracleµÄ»úÆ÷ÉÏ£¬PHPÎÞ·¨¼ÓÔØphp_oci8.dllÄ£¿é£¬ÔÒòÊÇphp_oci8.dllÒÀÀµµÄÏà¹Ø×é¼þûÓÐÕÒµ½¡£
ÄãÕýÈ·ÉèÖÃÁË ......
1¡¢ Í£Ö¹oracleËùÓеķþÎñ£¨¿ªÊ¼--ÔËÐÐ--ÊäÈëservices.msc£©
2¡¢ ɾ³ý×¢²á±íÉϵÄORACLEµÄÓйؼüÖµ(¿ªÊ¼-->ÔËÐÐ-->ÊäÈëregedit£©½«HKEY_LOACAL_MACHINE/SOFTWAREϵÄÖ÷¼üORACLEÈ«²¿É¾³ý¡£
3. ÏÂÃæÉ¾³ýOracle·þÎñ£º½øÈëHKEY_LOACAL_MACHINE/SYSTEMÖ÷¼üÏ£¬ÔÚControlSet001¡¢ControlSet002¡¢CurrentControlSet--> ......
SQLÖеĵ¥¼Ç¼º¯Êý
1.ASCII
·µ»ØÓëÖ¸¶¨µÄ×Ö·û¶ÔÓ¦µÄÊ®½øÖÆÊý;
SQL> select ascii(A) A,ascii(a) a,ascii(0) zero,ascii( ) space from dual;
A A ZERO SPACE
--------- --------- --------- ---------
65 97 48 32
2.CHR
¸ø³öÕûÊý,·µ»Ø¶ÔÓ¦µÄ×Ö·û;
SQL> select chr(54740) zhao,chr(65) chr65 from dual;
......
1. ²é¿´Oracle´´½¨¹ýÄÄЩÓû§
>select username from all_users;
2. ²é¿´Oracle´´½¨¹ýÄÄЩ±í¿Õ¼ä£¬±í¿Õ¼äµÄÃû×ֺʹóС
>select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_size
from dba_tablespaces t, dba_data_files d
wher ......
oracleÖÐʹÓÃon delete cascadeºÍon delete set nullÀ´½¨Á¢Íâ¼ü
ÆäÃæÎÒÃǽéÉÜÁË´´½¨Íâ¼üÔ¼ÊøÊ±Èç¹ûʹÓÃoracleĬÈϵĴ´½¨·½Ê½£¬ÔÚɾ³ý±»²ÎÕÕµÄÊý¾Ýʱ£¬½«ÎÞ·¨±»É¾³ý£¬ÕâÒ»µãÔÚoracle9iÖиøÁËÎÒÃǸü¶àÁé»îµÄÑ¡Ôñ£¬ÎÒÃÇ¿ÉÊÇʹÓÃon delete cascadeºÍ on delete set null¹Ø¼ü×ÖÀ´¾ö¶¨É¾³ý±»²ÎÕÕÊý¾ÝʱÊÇ·ñÒª½«²ÎÕÕÕâ¸öÊý¾ÝµÄÄÇÐ ......