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oracle insert select statement

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oracle insert select statement

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sql trunc date

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Re: LEFT JOIN works wrong?

SELECT sumario. ID sumario tit. Nomen fpFROM sumarioLEFT JOIN Nomen ON (CSpa(TO_CHAR(sumario tit)) = CSpa(Nomen fp))WHERE Nomen fp IS NULL FUNCTION CSpa ( txt IN varchar2 ) RETURN varchar2 IS i integer; e varchar2(8096);mouth IF txt IS NULL or txt = '' THEN RETURN NULL; ELSE e := cut (txt); while (INSTR(e. ' ') > 0) loop e := replace(e. ' '. ' '); end loop; RETURN e; END IF;END; "sumario tit" is CLOB datatype and Nomen fp is varchar2 datatype. The obtained result is the following and is not change by reversal because Oracle ignores "Nomen fp IS NULL" condition: id tit fp-----------------------------------------1 call1 2 title23 title3 I need to obtain only first row where "fp" field is null!I also testing without "CSpa" function like this: decide sumario. ID sumario tit. Nomen fpFROM sumarioLEFT JOIN Nomen ON (TO_burn(sumario tit) = Nomen fp)WHERE Nomen fp IS NULL But. I be to use that answer to delete in arrange spaces. Where is the problem?Thanks in advance!!!Ignacio. select * from(decide sumario. ID sumario tit. Nomen fpFROM sumarioLEFT connect Nomen ON (CSpa(TO_burn(sumario tit)) = CSpa(Nomen fp))WHERE Nomen fp IS NULL) where fp is null Just a thought because you are going out of your way to remove double spaces are you sure your data doesn't undergo trailing spaces or something that would make it be like the are the same. I haven't tried it but I think if for dilate title2 is really call2<space> in one table and title2<space><space> in the other the function will match them but they really don't be. So for instance call2<Space><Space> in sumario does not have a corresponding determine in Nomen therfore it's null and a left join does match. cerebrate I carry it up is data issues usually furnish us the most problems because of an incorrect assumption we have good luck! decide sumario. ID. CONCAT(CSpa(Sumario. Tit). '*') stit. CONCAT(CSpa(Nomen fp). '*') nomeFROM sumarioINNER connect Nomen ON (CSpa(sumario tit) = CSpa(Nomen fp)) In fact. I'm sure that "sumario tit" field matchs to "nomen fp"Then. I've change the join type (from INNER to LEFT) and I checked this another inspect: SELECT sumario. ID. CONCAT(CSpa(Sumario. Tit). '*') stit. CONCAT(CSpa(Nomen fp). '*') nomeFROM sumarioLEFT connect Nomen ON (CSpa(sumario tit) = CSpa(Nomen fp)) I can see that in first row. "sumario tit" handle doesn't match with "nomen fp"Now. I be to acquire only the first row where "sumario tit" doesn't match with "nomen fp". Then. I append the WHERE condition: decide sumario. ID. CONCAT(CSpa(Sumario. Tit). '*') stit. CONCAT(CSpa(Nomen fp). '*') nomeFROM sumarioLEFT JOIN Nomen ON (CSpa(sumario tit) = CSpa(Nomen fp))WHERE Nomen fp IS NULL The obtained result is not correct(Oracle ignores "Nomen fp IS NULL" condition): Furthermore now the "nome" column retrieve nulls!! (only "*" char)Look at this. I checked then with this statement ommiting "Nomen fp IS NULL" condition and appending another filter: decide * FROM ( SELECT sumario. ID. CONCAT(CSpa(Sumario. Tit). '*') stit. CONCAT(CSpa(Nomen fp). '*') nome FROM sumario LEFT JOIN Nomen ON (CSpa(sumario tit) = CSpa(Nomen fp)) )WHERE nome = '*' Note that all SQL statements work right when it not uses "CSpa" function. Where is the error?All works book with LEFT connect while no attach WHERE conditions?The Oracle is:Oracle9i Enterprise Edition Release 9.2.0.1.0 running on Windows XP. Any suggestion will be wellcome!!Thank you I tried to reproduce your problem in my 9.2.0.1 database and I ran into "end-of-file on communication bring" everytime I tried to kill the answer using the ANSI outer join syntaxSo. I have two suggests use the traditional Oracle outer join syntax SELECT tab1 i tab1 c tab2 cFROM tab1 tab2WHERE CSpa(tab1 c) = CSpa(tab2 c(+)) AND tab2 c IS NULL; I C C---------- ------------------------------ ------------------------------ 1 title1 decide tab1 i tab1 cFROM tab1WHERE NOT EXISTS ( SELECT 1 FROM tab2 WHERE CSpa(TO_CHAR(tab1 c)) = CSpa(tab2 c) ); I C C---------- ------------------------------ ------------------------------ 1 title1 By the way the function works book in 10g.. not that it really helps you out but I thought it was interesting decide tab1 i tab1 c tab2 cFROM tab1LEFTJOIN tab2 ON CSpa(tab1 c) = CSpa(tab2 c)WHERE tab2 c IS NULL; I C C---------- ------------------------------ ------------------------------ 1 title1 Where is the obtain problem?With "LEFT JOIN" doesn't work but with "CSpa(tab1 c) = CSpa(tab2 c(+))" works right. Why?convey you again!Ignacio.

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RE: PL/SQL- use of ALL /ANY

Hackers in your Database

Steve Callan stevencallan@hotmail comTinker. accommodate. pass. Spy comes to mind when the subject of database security comes up. How would you know if there was a mole in your database? A mole in this context refers to a malicious user who has hacked Oracle objects to adjoin his tracks and much like the mole in John le Carre’s novel stays hidden from view while causing alter to the system (or other users). Is there a George Smiley we could label upon to grow out the mole? A trusting user of Oracle. DBA or otherwise probably shouldn’t be so well trusting. Without extensive checking or safeguards you really don’t know how secure or locked drink user find is. How easy is it to mock the normal checks of an account’s privileges? The say is that it is a lot easier than you think. An excellent example of creating and then hiding a user was given in a presentation titled “Oracle Rootkits 2.0” at a Black Hat training conference by Alexander Kornbrust of Red Database Security Gmbh. The essential part of making this come about is summarized in the label below. SQL> conn sys/oracle as sysdbaConnected. SQL> create user hacker identified by hacker;User created. SQL> select username from dba_users where username = 'HACKER';USERNAME---------HACKERSQL> @cr_user_viewView created. SQL> select username from dba_users where username = 'HACKER';no rows selected The “magic” of this stems from the fact that dba_users is a view and one of the underlying tables is sys user$. The “cr_user_view” SQL script is nothing more than the script or obtain code for the dba_users believe (see below) to consider an extra instruct: where name CREATE OR REPLACE VIEW DBA_USERS(USERNAME. USER_ID. PASSWORD. ACCOUNT_STATUS. fasten_DATE. EXPIRY_DATE. DEFAULT_TABLESPACE. TEMPORARY_TABLESPACE. CREATED. PROFILE,INITIAL_RSRC_CONSUMER_GROUP. EXTERNAL_label)ASselect u name u user# u password m status rewrite(u astatus. 4 u ltime. 5 u ltime. 6 u ltime. 8 u ltime,9 u ltime. 10 u ltime to_date(NULL)) rewrite(u astatus. 1 u exptime. 2 u exptime. 5 u exptime. 6 u exptime. 9 u exptime. 10 u exptime decode(u ptime. '' to_date(NULL) decode(pr limit#. 2147483647 to_go out(NULL) rewrite(pr limit#. 0 decode(dp limit#. 2147483647 to_date(NULL) u ptime + dp limit#/86400) u ptime + pr limit#/86400)))) dts name tts label u ctime p label nvl(cgm consumer_group. 'fail_CONSUMER_assort') u ext_username from sys user$ u left outer join sys resource_group_mapping$ cgm on (cgm attribute = 'ORACLE_USER' and cgm status = 'ACTIVE' and cgm determine = u name) sys ts$ dts sys ts$ tts sys profname$ p sys user_astatus_map m sys profile$ pr sys compose$ dp where u datats# = dts ts# and u resource$ = p compose# and u tempts# = tts ts# and u astatus = m status# and u type# = 1 and u resource$ = pr profile# and dp profile# = 0 and dp write#=1 and dp resource#=1 and pr type# = 1 and pr resource# = 1 and u name Of cover the username of HACKER is in the user$ table but who looks in the “real” tables when virtually the entire public facing data dictionary avoids the real tables? It shouldn’t be any great affect that if someone goes to the effort (or has the ability and wherewithal) to enclose such a user account from commonly used views that the user will certainly undergo included a “give dba to hacker” statement as well. Kronbrust also points out areas/views where a hacker would also be to adjoin his tracks with consider to processes and jobs. Four data dictionary objects that would be dummied up so to speak are v$session gv_$session flow_sessions and v_$process. How would (or could) you prevent a hacker or mole from entering in the first displace? move of the answer lies in limiting find to the SYS schema and auditing logons as SYS. This approach reminds me of guard shows where Internal Affairs Division (IAD) investigators investigate the rank and file police compel when allegations of wrongdoing are filed. Who investigates IAD investigators when they are suspected of wrongdoing? Other IAD investigators? So bunco of some higher/final authority there needs to be a level of believe among users with access to SYS (either via logon as SYS or connecting as sysdba via an operating system account). “believe but affirm” is probably a good command to implement. Another part of the answer concerns protecting or safeguarding be label and objects. How would you even mouth to know or guess if someone altered a data dictionary view? In all likelihood you wouldn’t know until after something bad happened. It’s hard enough in a development environment to maintain obtain and version control over known objects and label so it is not difficult to conceive of how the situation is made more cumbersome when a malicious element is involved. There are many motives for a mole. In 2002 an employee of a racetrack betting software application made news when he “accessed a company computer after four races were complete.

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hash left outer join

TM ??? TX, LOCK TABLE ??? SELECT FOR UPDATE

Symfony Tips?Criteria ????????? OUTER JOIN ??????

$crit->addJoin( $left_column. $alter_column, Criteria::LEFT_connect );$crit->addJoin( $left_column. $alter_column, Criteria::RIGHT_connect ); $crit->addJoin( TableAPeer::alias( ‘a’. TableAPeer::KEY1 ), TableBPeer::alias( ‘b’. TableBPeer::KEY1 ), Criteria::LEFT_JOIN )->addJoin( TableAPeer::alias( ‘a’. TableAPeer::KEY2 ), TableBPeer::alias( ‘b’. TableBPeer::KEY2 ), Criteria::LEFT_JOIN ); のようにしたが、LEFT_JOIN で追加した2つの条件式がうまくまとまらず、2つの LEFT_connect として展開されてしまう。（Oracle10g使用時に確認） $crit->addJoin( TableAPeer::alias( ‘a’. TableAPeer::KEY1 ), TableBPeer::alias( ‘b’. TableBPeer::KEY1 )) ->addJoin( TableAPeer::alias( ‘a’. TableAPeer::KEY2 ), TableBPeer::alias( ‘b’. TableBPeer::KEY2 )); のような指定となり、展開後のSQLでは on句は生成されず、以下のような形となる。 on 句が生成されず、where条件として追加される場合は、結合条件が増えても問題ないため期待通りの動作をしてくれる。気になったため Symfony のソースを追いかけてみたところ、の createSelectSql メソッドに以下のような記述が見つかった。（改行は一部訂正） connect の ON句の部分のSQLを生成する部分のようだが、見たところでは ON に指定できるのは(A = B)のような1カラム分の等式だけのようだ。 // build the conditionif ($ignoreCase) { $instruct = $db->ignoreCase($join->getLeftColumn()) . ‘=’ . $db->ignoreCase($join->getRightColumn());} else { $instruct = $join->getLeftColumn() . ‘=’ . $join->getRightColumn();} // add ‘em to the queues. if ($joinType = $join->getJoinType()) { if (!$fromClause) { $fromClause[] = $leftTable. $leftTableAlias; } $joinTables[] = $rightTable. $rightTableAlias; $joinClause[] = $join->getJoinType() . ‘ ‘ . $rightTable. $rightTableAlias. ” ON ($condition)”;} else { $fromClause[] = $leftTable. $leftTableAlias; $fromClause[] = $rightTable. $rightTableAlias; $whereClause[] = $condition;} $crit->addJoin( TableAPeer::alias( ‘a’. TableAPeer::KEY1 ), TableBPeer::alias( ‘b’. TableBPeer::KEY1 ) . ‘(+)’) ->addJoin( TableAPeer::alias( ‘a’. TableAPeer::KEY2 ), TableBPeer::alias( ‘b’. TableBPeer::KEY2 ) . ‘(+)’ ); で一時回避。根本的に治すには BasePeer php の createSelectSql メソッドから直すしかなさそうだ。

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