Why DECODE can be used in the sql statement

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• error in pseudo-column "DECODE" can be used within an SQL statement

  Hi gurus,

  Your help is grealty appreciated. Please help me.

  
  I'm trying to see if I can use the function decode as below and get the error, here below vPlatformfrom value would be QA or MTS

  
  vDataBase1 :='@'|| Decode (vPlatformfrom, 'STD', 'STD', 'QA', 'QA')

  
  Before we check function NVL to a single platform, but now we need the database based on the platform is here.

  -vDataBase1 :='@'|| NVL (vPlatformto, 'MTS');

  Error:

  PLS-00204: pseudo-column "DECODE" or function may be used within an SQL statement

  > So, here, instead of the decode function, I can use this case as below:

  Well... you can, but why?  In your CASE, you simply return the same value as the variable.

  You might as well use: vDataBase1: = vPlatformfrom;  It would reach exactly the same thing.

  If vPlatformfrom can be a null value, you will need to decide what database to use or an exception.  I think you're original code (NVL) were probably more correct, but I can't decide which.

  (and don't bother selecting double, it is an unnecessary sql statement which must be analysed, etc..)

• How to make a refund on an app that I bought by mistake I can not use in the United States

  I have Down loaded and bought an antenna app companion that can not be used in the United States for $2.99.  How can I get a refund

  Purchases are considered final, but you can try the page 'report a problem' to contact iTunes Support and see if they will refund or credit you: http://reportaproblem.apple.com

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• Why I can't use the procedure in the select statement

  Why I can't use the procedure in the select statement

  And you may not usa a SQL function if it has out parameters

  SQL> create function myfun(p1 in out number) return number is
    2  begin
    3  p1:=1;
    4  return 2;
    5  end;
    6  /
  
  SQL> select myfun(5) from dual;
  select myfun(5) from dual
         *
  ERRORE alla riga 1:
  ORA-06572: Function MYFUN has out arguments
  

  In fact, the problem is that an output parameter is passed 'ref' and not 'val '...

  Max

• What are the parameters? How are Variables differenet? Why we can not use variables to pass data to one sequnece to another? What is the advantage to use parameters instead of Variables?

  Hi all

  I am new to TestStand. Still in the learning process.

  What are the parameters? How are Variables differenet? Why we can not use variables to pass data to one sequnece to another? What is the advantage to use parameters instead of Variables?

  Thanks in advance,

  LaVIEWan

  I'm sorry... I discovered that... its not at all possible to pass data to another sequence using variables... it must be through settings... once again I apologize for the display of such a stupid question

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  who should also update your BlackBerryID.

• Why I can't use the nested aggregate function?

  Hello Experts,

  Why I can't use the nested aggregate function? There is not an ora-00979 group by error of expression.

  Oracle Database 11 g Release 11.2.0.4.0 - 64 bit Production

  Select

     SUM (BOX WHEN (KSD_CREATEDATE BETWEEN TRUNC((KSD_CREATEDATE)) AND TRUNC(MIN(KSD_CREATEDATE)) +60) THEN 1  ELSE 0 END) AS col

  DE TABLE_3_4

  GROUP BY STC_FIRMANO

  Thank you

  GROUP BY will manage the SUM function, but the MIN is used incorrectly - use another SELECTION to get it, or work with only with a single line. Otherwise, you could do WITH... get the SUM of SELECT MIN...

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  Why I can't use the trial to convert PDF to Microsoft Word files

  Hi cathiechua,

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  Best,

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• How to COPY a BACKUP as the... CONTROLFILE can be used for the OPEN database

  I create a document such as a "How To" to move a position for a Junior DBA controlfile.

  But it seems that I'm the Junior because I am facing the following...

  Action plan:

  Move/rename a Controlfile

  Version of the database: 11.2.0.3

  Controlfiles moving of:

  / goldengate/ORCL/ORADATA /.

  TO:

  / GoldenGate/ORCL/controlfile

  Step 1: Set up environment variables

  $> export ORACLE_SID = ORCL1 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- $> echo $ORACLE_SID ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ORCL1 $> export ORACLE_BASE = / u01/app/oracle ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- $> echo $ORACLE_BASE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- / u01/app/Oracle $> export ORACLE_HOME=$ORACLE_BASE/product/11.2.0.3/dbhome_1 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  $ echo $ORACLE_HOME

  -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  /U01/app/Oracle/product/11.2.0.3/dbhome_1

  Step 2: Check control_files parameter

  $> echo "see THE PARAMETER control_files | sqlplus-s "virtue sysdba". ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- VALUE OF TYPE NAME ------------------------------------ ----------- ------------------------------ control_files string/goldengate/ORCL/ORADATA/control ol01. CTL, / goldengate/ORCL/ORA DATA/control02.ctl

  Step 3: Closing the open database

  $> echo 'SHUTDOWN IMMEDIATE'; | sqlplus-s "virtue sysdba". ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- The database is closed. The database is dismounted. ORACLE instance stops.

  Step 4: Editing of the database

  $> echo "STARTUP MOUNT"; | sqlplus-s "virtue sysdba". ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ORACLE instance started. Total System Global Area 4275781632 bytes Bytes of size 2235208 fixed

  822084792 variable size bytes

  3439329280 of database buffers bytes

  Redo buffers 12132352 bytes

  Mounted database.

  Step 5: Creating a copy of the current controlfile

  $> echo "AS BACKUP COPY CURRENT CONTROLFILE FORMAT ' / goldengate/ORCL/CONTROLFILE/control01.copy.ctl'; ' | RMAN target / nocatalog ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Recovery Manager: release 11.2.0.3.0 - Production Fri Oct 22 17:03:27 2015 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: ORCL (DBID = 1420762587, is not open) using the control file of the target instead of recovery catalog database RMAN > From 22 October 15 backup allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID = 58 type of device = DISK channel ORA_DISK_1: from data file copy copy the current control file tag name=/goldengate/ORCL/CONTROLFILE/control01.copy.ctl output file = RECID = 1 STAMP = 893783011 TAG20151022T170329 channel ORA_DISK_1: datafile copy complete, duration: 00:00:03 Backup finished at 22 October 15 RMAN >

  Complete recovery manager.

  Step 6: Change of parameter control_files

  $> echo "ALTER SYSTEM SET control_files='/goldengate/ORCL/CONTROLFILE/control01.copy.ctl' SCOPE = SPFILE;" | sqlplus-s "virtue sysdba". -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  Modified system.

  Step 7: Closing of the mounted database

  $> echo 'SHUTDOWN IMMEDIATE'; | sqlplus-s "virtue sysdba". ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ORA-01109: database is not open The database is dismounted. ORACLE instance stops.

  Step 8: Installation of the database

  $> echo "STARTUP MOUNT"; | sqlplus-s "virtue sysdba". ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ORACLE instance started. Total System Global Area 4275781632 bytes Bytes of size 2235208 fixed 822084792 variable size bytes 3439329280 of database buffers bytes Redo buffers 12132352 bytes Mounted database.

  Step 9: Check control_files parameter

  $> echo "see THE PARAMETER control_files | sqlplus-s "virtue sysdba". ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- VALUE OF TYPE NAME ------------------------------------ ----------- ------------------------------ control_files string/goldengate/ORCL/CONTROLFILE/c ontrol01. Copy.CTL

  Step 10: Open the mounted database

  $> echo "ALTER DATABASE OPEN"; | sqlplus-s "virtue sysdba". ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ALTER DATABASE OPEN * ERROR on line 1: ORA-01589: must use RESETLOGS or NORESETLOGS option of database open $> echo "ALTER DATABASE OPEN NORESETLOGS"; | sqlplus-s "virtue sysdba". ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ALTER DATABASE OPEN NORESETLOGS * ERROR on line 1: ORA-01610: recovery using BACKUP CONTROLFILE option must be

  Then...

  $> sqlplus/nolog ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SQL * more: Production release 11.2.0.3.0 the game Oct 22 17:14:43 2015 Copyright (c) 1982, 2011, Oracle.  All rights reserved. SQL > CONNECT sysdba virtue ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Connected. SQL > RECOVER DATABASE with the HELP of BACKUP CONTROLFILE until CANCEL; -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  ORA-00279: change 621941 September at 22/10/2015 16:57:33 needed to screw 1

  ORA-00289: suggestion:

  /U01/app/Oracle/product/11.2.0.3/dbhome_1/DBS/arch1_11_892981851.dbf

  ORA-00280: change 621941 thread 1 is in sequence #11

  Specify the log: {< RET > = suggested |} Filename | AUTO | CANCEL}

  Cancel

  -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  Cancelled media recovery.

  SQL > ALTER DATABASE OPEN;

  -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

  ALTER DATABASE OPEN

  *

  ERROR on line 1:

  ORA-01589: must use RESETLOGS or NORESETLOGS option of database open

  Issues related to the:

  What am I misunderstanding? BACKUP COPY THAT isn't really a COPY.

  Why I can't use the 'copy' of the controlfile created by RMAN?

  Note:

  If I just copy the controlfile to the new location when the database shuts down everything works fine.

  Thanks in advance.

  Juan M

  
  

  Recovery Manager (RMAN)

  It is also mentioned in https://docs.oracle.com/cd/E11882_01/server.112/e25494/control.htm#ADMIN11288

  Create additional Copies, rename and move the control files

• How can I pass a condition of the table in the sql statement?

  For example, in the table in the COND Varchar2 column (200) there is the value ' VAR > 10'.

  | COND |

  |' VAR > 10' |

  where VAR is the name of the table column. I would like to make statement CASE WHEN VAR > 10 AND 0... I tried with as subquery

  WHEN BOX (SELECT COND FROM TABLE WHERE...) THEN 0, but it does not work.

  Hello

  You can do this by using dynamic SQL.

  that is to say:

  declare
    v_stm      varchar2(4000);
    v_cond      varchar2(100);
    v_result    integer;
  begin
    select cond
      into v_cond
      from yourtable
    where a=1;
  
    v_stm := 'select case when '||v_cond||' then 0 ...';
  
    -- dynamic sql
    execute immediate v_stm
      into v_result;
  
  end;
  /
  

  Remember that, in general, dynamic SQL has a performance degradation that SQL static and should be avoided when possible.

  Storage condition or the SQL statements in the tables is not a good practice.

  Kind regards.

  Alberto

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  Hey... I also had the same problem into account.

  so I tried to give the ExternalSystemId. and it worked... It should work once you set the external id.

  Concerning
  Balaji Tr.

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