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2. Nvl()º¯Êý
3. Rollup,Cube×Ô¶¯»ã×ܺ¯Êý
4. Rank,Dense_rank,Row_numberº¯Êý
5. Lag , Leadº¯Êý
6. Sum,Avg, Count, Maxº¯Êý
7. Ratio_to_report±¨±í´¦Àíº¯Êý
8. First,Last£¬First_value£¬Last_valueÈ¡»ùÊýµÄ·ÖÎöº¯Êý
9. Greatest, Least º¯Êý
10. Trunc, Round,Decode, Substrº¯Êý
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over£¨order by salary£© °´ÕÕsalaryÅÅÐò½øÐÐÀۼƣ¬order byÊǸöĬÈϵĿª´°º¯Êý
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over£¨order by salary rows between unbounded preceding and unbounded following£©
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<?php
//require("adodb5/adodb-exceptions.inc.php");
require("adodb5/adodb.inc.php");
$conn = NewADOConnection("oci8");
$conn->Connect($url, $user, $password, $service_name);
$rs;
try {
$rs = $conn->Execu ......
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----------------------------------------------------------------
---Muti-row to line(col2row)
----------------------------------------------------------------
create or replace type str_tab is table of varchar2(20);
/
grant all on str_tab to public;
create public synonym str_tab for ......
INSERT /*+APPEND */ INTO employee (empno,ename,sal,deptno)
SELECT empno,ename,sal,deptno from emp
WHERE deptno=20;
µÚ¶þÌõÓï¾äʹÓÃ/*+APPEND */À´±íʾ²ÉÓÃÖ±½Ó×°ÔØ·½Ê½£¬µ±Òª×°ÔØ´óÅúÁ¿Êý¾Ýʱ£¬²ÉÓõڶþÖÖ·½·¨×°ÔØÊý¾ÝµÄËÙ¶ÈÒªÔ¶Ô¶ÓÅÓÚµÚÒ»ÖÖ·½·¨¡£
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ʹÓÃALL²Ù×÷·ûÖ´Ðжà±í²åÈëʱ£¬ÔÚÿ¸öÌõ¼þ× ......
1¡¢²éÕÒ±íµÄËùÓÐË÷Òý£¨°üÀ¨Ë÷ÒýÃû£¬ÀàÐÍ£¬¹¹³ÉÁУ©£º
select t.*,i.index_type from user_ind_columns t,user_indexes i where t.index_name = i.index_name and t.table_name = i.table_name and t.table_name = Òª²éѯµÄ±í
2¡¢²éÕÒ±íµÄÖ÷¼ü£¨°üÀ¨Ãû³Æ£¬¹¹³ÉÁУ©£º
select cu.* from user_cons_columns cu, user_con ......
create table emp2_log(
uname varchar2(20),
action varchar(10),
atime date
);
create or replace trigger trig
after insert or delete or update on emp2 for each row //°óÔÚÒ»ÕűíÉÏ,before after ¶¼¿É
ÒÔ,beforeÊÇ ²åÊý¾Ý֮ǰ£¬afterÊÇÖ®ºó
begin
&nb ......