Oracle²ð·Ö×Ö·û´®º¯Êý
--¶¨ÒåÀàÐÍ
CREATE OR REPLACE TYPE ty_str_split IS TABLE OF VARCHAR2(4000);
--´´½¨º¯Êý
CREATE OR REPLACE FUNCTION f_stringsplit (p_str IN VARCHAR2, p_delimiter IN VARCHAR2)
RETURN ty_str_split PIPELINED
/*****
****×Ö·û´®²ð·Ö,Ï൱ÓÚjava.lang.StringÀàµÄsplit·½·¨
****×¢Òâ:ÐÂÔötypes:CREATE OR REPLACE TYPE ty_str_split IS TABLE OF VARCHAR2 (100);
****´´½¨Õߣº
****ʱ¼ä£º
****ÕªÈ¡ÍøÂç×ÊÔ´
***/
IS
j INT := 0;
i INT := 1;
len INT := 0;
len1 INT := 0;
str VARCHAR2 (100);
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);
PIPE ROW (str);
IF i >= len
THEN
EXIT;
END IF;
ELSE
str := SUBSTR (p_str, i, j - i);
i := j + len1;
PIPE ROW (str);
END IF;
END LOOP;
RETURN;
END f_stringsplit;
--µ÷ÓÃ
select¡¡*¡¡from¡¡t
Ïà¹ØÎĵµ£º
OracleÊý¾Ýµ¼Èëµ¼³öimp/exp¾ÍÏ൱ÓÚoracleÊý¾Ý»¹ÔÓ뱸·Ý¡£expÃüÁî¿ÉÒÔ°ÑÊý¾Ý´ÓÔ¶³ÌÊý¾Ý¿â·þÎñÆ÷µ¼³öµ½±¾µØµÄdmpÎļþ£¬impÃüÁî¿ÉÒÔ°ÑdmpÎļþ´Ó±¾µØµ¼Èëµ½Ô¶´¦µÄÊý¾Ý¿â·þÎñÆ÷ÖС£ ÀûÓÃÕâ¸ö¹¦ÄÜ¿ÉÒÔ¹¹½¨Á½¸öÏàͬµÄÊý¾Ý¿â£¬Ò»¸öÓÃÀ´²âÊÔ£¬Ò»¸öÓÃÀ´ÕýʽʹÓá£
Ö´Ðл·¾³£º¿ÉÒÔÔÚSQLPLUS.EXE»òÕßDOS£¨ÃüÁîÐУ©ÖÐÖ´ÐУ¬
DOSÖп ......
×ªÔØ
DML statements on temporary tables do not generate redo logs for the data changes. However, undo logs for the data
and redo logs for the undo logs are generated. Data from the temporary table is automatically
dropped in the case of session termination, either when the user logs o ......
with
lockinfo as (
select distinct decode(sql_hash_value, 0, prev_hash_value, sql_hash_value) sql_hash_value, decode (sql_hash_value, 0, prev_sql_addr, sql_address) sql_address, s.sid, l.id1 object_id, l.block
from v$lock l, v$session s
&n ......
Õý³£À´Ëµ£¬ÔÚÍê³ÉSelectÓï¾ä¡¢create indexµÈһЩʹÓÃTEMP±í¿Õ¼äµÄÅÅÐò²Ù×÷ºó£¬OracleÊÇ»á×Ô¶¯ÊͷŵôÁÙʱ¶ÎaµÄ¡£µ«ÓÐЩÓкîÎÒÃÇÔò»áÓöµ½ÁÙʱ¶ÎûÓб»ÊÍ·Å£¬TEMP±í¿Õ¼ä¼¸ºõÂúµÄ×´¿ö£¬ÉõÖÁÊÇÎÒÃÇÖØÆôÁËÊý¾Ý¿âÈÔûÓнâ¾öÎÊÌâ¡£Õâ¸öÎÊÌâÔÚÂÛ̳ÖÐÒ²³£±»ÍøÓÑÎʵ½£¬ÏÂÃæÎÒ×ܽáһϣ¬¸ø³ö¼¸ÖÖ´¦Àí·½·¨¡£
......