Using aliases in column with CASE

Similar Questions

• How to use the Substring function with Case statement.

  Hi all
  
  I have a requirement where I have to use the substring function on the ground for the report criteria.
  FOR EXAMPLE
  I branch domain name where I have all the information of the branch names, now some of the branch names are too large with an extension after the name.
  now I want substing it, but the length of characters varies for each branch.
  so is it possible where we use a box where we can define if the character of name plug exceed a value then he substing with this length.

  Try something like this:

  LENGTH WHEN CARTER (tablename. Branch_Name) > n THEN SUBSTRING (...) Of ANOTHER tablename. Branch_Name END

  where n is the number of characters that you want to start the break.

• Update multiple columns with case

  I have this and I wanted to have it in a single update to the case when then etc. Anyone?

  UPDATE TABLE_NAME

  SET CIITM_ITEM_RATE = 9

  WHERE CIITM_APPLICATION = 7 AND CIITM_ITEM_RATE = 11 AND CIITM_CODE = 2;

  --8288 lines are updated.

  UPDATE TABLE_NAME

  SET CIITM_ITEM_RATE = 9, CIITM_NUMIT = 2

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  -15 updated lines to date.

  UPDATE TABLE_NAME

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  WHERE CIITM_APPLICATION = 7 AND CIITM_ITEM_RATE = 15 AND CIITM_CODE = 2;

  -5 lines to date.

  UPDATE TABLE_NAME

  SET CIITM_ITEM_RATE = 9, CIITM_NUMIT = 6

  WHERE CIITM_APPLICATION = 7 AND CIITM_ITEM_RATE = 16 AND CIITM_CODE = 2;

  -4 lines to date.

  UPDATE TABLE_NAME

  SET CIITM_ITEM_RATE = 9, CIITM_NUMIT = 7

  WHERE CIITM_APPLICATION = 7 AND CIITM_ITEM_RATE = 17 AND CIITM_CODE = 2;

  UPDATE TABLE_NAME

  SET CIITM_ITEM_RATE = 9,

  CIITM_NUMIT = CASE CIITM_ITEM_RATE

  11. WHEN CAN CIITM_NUMIT

  OF OTHER CIITM_ITEM_RATE - 10

  END

  WHERE CIITM_APPLICATION = 7

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  SY.

• Create the table with aliases for columns

  Hello
  
  I don't know if its possible, but how do I define aliases for columns when I create a table (in fact, a global temporary Table - TWG)? The idea is to select the column using its name or its alias, like this:
  
  SELECT nom_de_colonne FROM mytable
  
  or
  
  SELECT alias_de_colonne FROM MaTable
  
  I work with Oracle9i Enterprise Edition Release 9.2.0.1.0
  
  
  Thanks in advance.

  You do not define aliases when you create a table, when you choose him.

  I have to say... When you use it in a SQL statement (not just select).

  Published by: SomeoneElse 18 Sep, 2008 15:10

• I'm used to a column on the right side of the browser with all my favorites arranged vertically. It went all of a sudden

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• How to fill a column with numbers and maintain when adding or deleting lines?

  So far, I've discovered two ways to fill a column with the number:

  1. Enter '1' in a single cell, '2' in the one below, select both, and then use the yellow dot to drag down - it will do the rest.

  2 create a formula such as 'A2 + 1' and drag also.

  However, in both cases it will work if I manually this continues to do for each newly added line at the bottom. Now, that alone would not be that big of a problem if it wasn't for the fact that I'm working with a table where the lines can be added among other rows in the future.

  Having said that, could someone please tell me how to create a column with a number that will increase automatically? I mean - if I add a new line between line 56 and 57, I want the new line to have a '57"in it, and the" old 57 "would now be"58"and so on." " I don't want to drag the whole column, which can be hundreds if not more than a thousand lines.

  Try to put this in the cells in the column:

  = ROW()

  In the formula, you can add or subtract a number if necessary to get the starting number that you need.

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• Using aliases for the indicators, controls, procedures and calculated channels

  Hello

  I noticed that aliases do not appear in the workspace for the controls and indicators and procedures system Explorer and see calculated. Is there a way for them to appear? I need to use aliases because I like my definition of the system to control several test systems (which have different CAN report names). Otherwise my system definition would break every time I go to another CAN the database. I thought that the inability to address limited to the configurable alias controls add on, but it seems that VeriStand natively cannot address the areas I would like to also well done right click. Any recommendations would be welcome.

  Thank you.

  You are right that you cannot use alias in a file system definition for mapping purposes. It is an area that we hope to improve in the future. The initial design of alias was to serve as a public interface for the workspace, profiles of stimulus and so on. However, it is certainly a use case valid to be used as an interface in a system definition.

  A possible solution would be to create a set of user channels that play the public role of your interface in your system definition. Always use your user channels in all procedures, calculated channels and so on. Map your CAN channels on these channels to the user. Whenever you update YOUR database, you must remap the new CAN channels to the appropriate user channel. You can also automate this activity by importing a file delimited by tabs on the mappings page. The one drawback here is that your target will take a little more time to deal with these mappings.

• update of NULL in the column with the values of the adjacent column

  Examples of data

  with test_data as
  (select 1 as one, null as two, 2 as three,5 as four, 6 as five, null as six from dual
  union all
  select 1 as one, null as two, 2 as three,5 as four, 6 as five, null as six from dual)
  select * from test_data;
  

  This is one of those cases, the case may be where any value of a column can be null

  or two similar columns can be null. If the column is null then I want to update the adjacent column

  average value of the column, if the first column is null so I want to take the next non-null column and update, if the last column is null

  so I want to take prev not zero column and to update.

  In this case would be my expected output

  Un	Two	Three	Four	Five	Six
  1	1.5	2	5	6	6
  1	2	3	5	6	6

  Prospects for the future the suggesion or advice.

  Or, using Analytics:

  SQL> with test_data (id, one, two, three, four, five, six) as (
    2    select 1, 1   , null, 2   , 5, 6, null  from dual union all
    3    select 2, 1   , null, 3   , 5, 6, null  from dual union all
    4    select 3, 1   , null, null, 5, 6, null  from dual union all
    5    select 4, null, null, null, 5, 6, null  from dual
    6  )
    7  select *
    8  from (
    9    select id
   10         , cell
   11         , case when next_nn is not null and prev_nn is not null
   12             then (next_nn + prev_nn)/2
   13             else nvl(next_nn, prev_nn)
   14           end val
   15    from (
   16      select id
   17           , cell
   18           , val
   19           , last_value(val) ignore nulls over(partition by id order by cell) as prev_nn
   20           , first_value(val) ignore nulls over(partition by id order by cell range between current row and unbounded following) as next_nn
   21      from test_data
   22      unpivot include nulls (val for cell in (one as 1, two as 2, three as 3, four as 4, five as 5, six as 6) )
   23    )
   24  )
   25  pivot ( min(val) for cell in (1 as "ONE", 2 as "TWO", 3 as "THREE", 4 as "FOUR", 5 as "FIVE", 6 as "SIX") )
   26  ;
  
          ID        ONE        TWO      THREE       FOUR       FIVE        SIX
  ---------- ---------- ---------- ---------- ---------- ---------- ----------
           1          1        1,5          2          5          6          6
           2          1          2          3          5          6          6
           3          1          3          3          5          6          6
           4          5          5          5          5          6          6
  

• How to avoid duplicates on a column with condition

  Hi all

  I need some advice here. At work, we have an Oracle APEX application that allow the user to add new records with the decision of the increment automatic number based on the year and the group name.

  Said that if they add the first record, group name AA, for 2012, they get the decision number AA 1 2013 as their record casein displayed page of the report.

  The second record of AA in 2013 will be AA 2 2013.

  If we add about 20 records, it will be AA 20 2013.

  The first record for 2014 will be AA 1 2014.

  However, recently, we get a claim of the user on two files of the same name of group have the same number of the decision.

  When I looked in the history table and find that the time gap between 2 record is about 0.1 seconds.

  In addition, we have the correspondence table which allows the user admin update the sequence number start with the restraint that it must be greater than the maximum number of the current name of the current year.

  This boot sequence number and the name of the group is stored together in a table.

  And in some other case, the user can add a decision duplicate for related record number. (this is a new feature)

  The current logic of the procedure to add the new record on the application are

  _Get max record table with selected group name (decision_number) and the current year.

  _INSERT in the folder table the new record came with the decision to number + 1

  _ update sequence number of the number of the decision just added.

  So instead of utitlising the process of editing the built-in automatic table of the APEX, I write a procedure that combine all three processes.

  I have run some loop for continually perform this procedure, and it seems that it can generate autotically new decision unique number with time about 0.1 second difference.

  However, when I increase the number of entry to 200 and let two users run 100 each.

  If the time gap is about 0.01 second, double decision numbers are displayed.

  What can I do to prevent duplicate?

  I can't just apply a unique constraint here for three columns with condition because it can be duplicated in some special conditions. I don't know much about the use of lock and its impact.

  This is the content of my procedure

  create or replace

  PROCEDURE add_new_case)

  -ID just use the trigger

  p_case_title IN varchar2,

  p_year IN varchar2,

  p_group_name IN VARCHAR2,

  -decisionnumber here

  p_case_file_number IN VARCHAR2,

  -active

  p_user in VARCHAR2

  )

  AS

  NUMBER default_value;

  caseCount NUMBER;

  seqNumber NUMBER;

  previousDecisionNumber NUMBER;

  BEGIN

  -execution immediate q '[alter session set nls_date_format = "dd/mm/yyyy"]';

  SELECT count (*)

  IN caseCount

  OF CASE_RECORD

  WHERE GROUP_ABBR = p_group_name

  AND to_number (to_char (create_date, "yyyy")) = to_number (to_char (date_utils.get_current_date, "yyyy"));

  SELECT max (decision_number)

  IN previousDecisionNumber

  OF CASE_RECORD

  WHERE GROUP_ABBR = p_group_name

  AND to_number (to_char (create_date, "yyyy")) = to_number (to_char (date_utils.get_current_date, "yyyy"));

  IF p_group_name IS NULL

  THEN seqNumber: = 0;

  ON THE OTHER

  SELECT Seq_number INTO seqNumber FROM GROUP_LOOKUP WHERE ABBREVIATION = p_group_name;

  END IF;

  IF caseCount > 0 THEN

  default_value: largest = (seqNumber, previousdecisionnumber) + 1;

  ON THE OTHER

  default_value: = 1;

  END IF;

  INSERT INTO CASE_RECORD (case_title, decision_year, GROUP_ABBR, decision_number, case_file_number, active_yn, created_by, create_date)

  VALUES (p_case_title, p_year, p_group_name, default_value, p_case_file_number, 'Y', p_user, sysdate);

  -Need to update the sequence here also

  UPDATE GROUP_LOOKUP

  SET SEQ_NUMBER = default_value

  WHERE the ABBREVIATION = p_group_name;

  COMMIT;

  EXCEPTION

  WHILE OTHERS THEN

  Logger.Error (p_message_text = > SQLERRM)

  , p_message_code = > SQLCODE

  , p_stack_trace = > dbms_utility.format_error_backtrace

  );

  LIFT;

  END;

  Many thanks in advance,

  Ann

  It's easier to solve for the case, while p_group_name is not null. In this case, you update a GROUP_LOOKUP line, so that you can select to update this line at the beginning, to prevent cases of two for the same group added at the same time. To do this, change the selection of GROUP_LOOKUP to:

  SELECT Seq_number INTO seqNumber FROM GROUP_LOOKUP WHERE ABBREVIATION = p_group_name for an updated VERSION OF the SEQ_NUMBER;

  and move this to be the first thing that did the procedure - before it has CASE_RECORD lines.

  In the case when p_group_name is set to null, you have some object to be locked. I think the best you can do is to lock the entire table GROUP_LOOKUP:

  the table lock in exclusive mode GROUP_LOOKUP wait 100;

  The '100 expectation' means that he will wait until 100 seconds before giving up and trigger an error. in practice, that is expected to only wait a moment.

  Exclusive mode allows others to read, but not to update the table.

  UPDATES and the LOCK of the TABLE will be updates of other sessions wait for this transaction to validate. Queries from other sessions are not affected.

  The locks are released when you commit or roll back.

• Indexes on columns with only "Y" and "n".

  Our transaction table has about 100 mn lines. Of these latter on 60 minutes the lines are not actively used.
  
  We have composite index on multiple columns, including dates, and these are used to regular queries.
  
  Will be adding a status = 'y' or ' don't column and the creation of an index on this column is useful to increase the performance of the query?
  
  For example, will add a condition like
  
  OÙ......... AND ACTIVE_FLAG = 'Y '.
  
  help increase the performance of queries?
  
  Creating such a column and adding a help index?
  What type of clue do you recommend?
  
  The alternative advocated by some members of the staff is the archiving of INACTIVE lines in a separate table. This will have a big impact on business processes. But we might be able to pull it off.
  
  Is there another solution.
  
  I am a beginner full performance although I am familiar with PL/SQL and queries.
  I'm on the constraints of very tight timetable for the first level of back. I'll have more time as soon as I know the direction in which to go.
  
  Forgive me if I broke a tag forum. I'm new on the forum too.

  Thanks for providing this information. This gives a much clearer picture of what you are facing.

  I will try to give you my answer your questions afterwards.

  You have indicated your data volumes have steadily increased and performance made that decline.
  Even if you do not say (I forgot to ask) but it may be that the number of users increases as and.
  so typical, many users use the system of the time.

  For me it's indicative of a systemic problem. In other words, the problem is not due to a
  a thing or a part of the system.

  There are two main components of a server: the instance and the database. This link sums up the difference
  between the two - http://www.adp-gmbh.ch/ora/misc/database_vs_instance.html and here is a link to recent forum
  for reference Re: difference between Oracle Instance and Database.

  To paraphrase, an instance includes background processes and structures of memory (SGA, PGA, etc.)
  Oracle uses.

  The symptoms you describe could mean that your instance is more configured size not set correctly
  for your current workload are originally strain throughout the system. Maybe the memory is too limited.
  Maybe your sorts are growing with addional data.

  I suggest that you start the new thread to ask for help in the evaluation and optimization of your instance. Use this
  as a starting point:
  >
  Question/title - how to evaluate the State of health / instance and tune

  Our facility has a problem of increasing return.

  How can we collect and provide assessment of workload and configuration information, so you can help determine
  possible solutions such as: memory sizing, temp and segment again sizing, sort the issue.

  Statement of the problem
  1 oracle Version is? ?. ?. ?

  2. gradually return was degrading with more and more data. The UI response suffers and
  batch processing is also in hours. We expect volumes to only continue to grow.

  3. the volumes have continued to increase over the years and gradually performance issues
  accumulate over the past 2 years. Data volumes began to increase faster
  last year 1 due to changes in the company.

  4. the data in OLTP system is a combination of assets of 40% and 60% relatively inactive (financial history).

  5. a complete system near-live replecation on several sites. In my opinion, using streams.

  6. notice of the tech team is a few tables have too many lines. We know that our demands can be suboptimal.

  >

  Now to your question:
  >
  1. I do not know the index on the existing columns are not fully exploited. In the meantime can but, we still get some benefits from adding
  a 'Y' and the null column? What will be improved?
  >

  It is unlikely the benefits you need. It's putting the cart before the horse. The first step is to identify a specific problem.
  Only then can examine you and evaluate solutions. for example by adding a new column or index.

  There are several reasons, this isn't the right solution; certainly not at the moment
  A. any new column and index, BY DEFINITION, maybe even this does not use except if one or more current
  queries are changed. This is obvious since no existing query could possibly refer to a column that does not exist.

  (B) to try to obtain the Oracle to use the new index column / single lease request must be changed.

  C. in my opinion, you should never modify a query of production without knowing which allows to obtain the amendment
  a well-defined objective. You must evaluate the current execution plan to identify what changes, IF ANY,
  can improve performance.

  D. it can be and given your systemic problem is likely to be, some ripe fruit on the performance. That
  is that there may be ways to tune the query to use existing indexes or add a new index on an existing column
  improve things.

  E. assuming that none of the above does the work adding a new column and an index to identify
  a 40/60 split (40% of assets) is unlikely to be used by Oracle (see response of Centinui).

  >
  2. notes that this calculation 'Y' is not negligible. I can easily reproduce this with a WHERE condition on the existing columns. We can have
  to run a batch on the weekend to check row groups and mark them as 'Y '. So it is not only the advantage of indexing on 'Y', but also some benefits of prior calculation.
  Given this info doing now more logic to have a 'Y' and the null column?
  >
  My answer is no – there is no sense to have a Y/N Y/NULL column.

  A. certainly not for reasons of performance - as noted above above it is unlikely help

  Certainly not for commercial reasons.
  The calculation of your "non-trivial" is to demonstrate a business rule: identify groups of lines that have earned.
  If you perform this calculation, the result must be saved significantly. One way is to create a new
  column called 'DATE_NETTED_OUT '. This column name have meanings, and can be used as a boolean DATE/NULL type. This
  It would be much better that Y/NULL which is not really enter the business sense of the value.

  >
  3 partitioning speed up queries on the minutes 40 active and slow queries on the full 100 minutes?
  >
  Probably not to have one influence on the other. Allocation decisions are usually made to ensure easier data management and often
  have little, if any, a performance impact. All existing applications are unlikely to accomplish the any
  differently just because the table is partitioned. There are exceptions of course. If you partition on DATE
  and an existing query has a DATE filter, but there is no index on the DATE column, it will do a full table scan
  of the whole picture. If the table is partitioned on this DATE column that oracle would probably make a partition full
  Scan just the 40% or 60% of the table according to the value DATE. It would be so much faster.

  But if there is already an index on the column DATE I do not expect the performance to change much. It comes
  just speculation since it is based on data, the factor of grouping the data, and the existing queries.

  >
  1. I still need to a particular column of partion, I do not?
  >
  Yes, you do. Unless you use HASH Partitioning that don't really benefit your use case. You too
  says that "...". staff advocate is the archiving of INACTIVE lines in a separate table "."
  Partitioning can be used as part of this strategy. Partition by MONTH or by QUARTER on your
  new column "DATE_NETTED_OUT." Keep 1 or 2 years of data online as you do now and when a partition
  becomes more than 2 years you can 'transport' it to your archiving system. This is part of the partition
  management, which I mentioned earlier. You can simply disconnect the oldest partition and copy it to archive.
  This will not affect your applications other than the data not being is not available.

  >
  2. "adds a column' or ' cut-and - paste lines of table created by copy" the worst idea?
  >
  I don't know what that means.

  SUMMARY

  It is premature to consider alternatives until you know what the problems are. Only then you can try to
  determine the applicable solutions.

  I do it in this order:

  1. upgrading to a newer version of Oracle you are on an older (you said 9i which is not
  longer supported)

  2 assess the health and configuration of your instance. You may be able to significantly improve things
  by adjusting the parameters of configuration and instance. Post a new question, as previously mentioned. I don't
  have the expertise to advise you in details on that and the gurus tuning of the Forum the Forum can
  not to notice this thread (indexes on columns with only 'Y' and 'n') than even know you need help.

  3. identify the ripe fruits for performance problems. Is this one of your batch process? An individual
  request? You mentioned UI soon - that could be a problem of front end, middle tier or application
  not a database one.

  4. don't it make changes architecture (add columns) until you have tried everything first.

• [8i & 10g XE] How to compare a column with the text of a column with numbers

  This is probably a simple question, but I can't seem to find the answer. I tried variations on use to_number to_char and interpreters, all nothing will do.
  
  The real problem is that I have a table with a column of numbers in a database 8i (datatype = NUMBER (3)) and a column with the text (datatype = CHAR (3)), and I need to compare two values.
  
  This table has thousands of lines, but here's an example of the data in these two columns:

  TXT     CHR
  -----------
  001     1
  001     2
  002     2
  XXX     1
  003     3

  What I want to do is select the lines where the TXT and CHR VALUES do not match, then it would be (given my example):

  TXT     CHR
  -----------
  001     2
  XXX     1

  But, I'm having difficulties in comparing two columns, because they are not the same type of data.
  
  I tried to work on a simplified version of the problem in the 8i database both my 10g XE database:

  SELECT     *
  FROM     (
       SELECT     1.000               AS nbr
       ,     TO_CHAR(1.000,'000')     AS txt
       ,     CAST('001' AS CHAR(3))     AS chr
       FROM     dual
       )
  WHERE     txt = chr
  ;

  But this also returns any line, and it isn't even the "XXX" in the text column to treat in this example.
  
  Can someone help me understand what it is that I'm missing?
  
  Thank you!

  Hello

  user11033437 wrote:
  This is probably a simple question...

  Simple if you know the secret; maddening if you do not have.

  ... I tried to work on a simplified version of the problem in the 8i database both my 10g XE database:

  SELECT     *
  FROM     (
       SELECT     1.000               AS nbr
       ,     TO_CHAR(1.000,'000')     AS txt
       ,     CAST('001' AS CHAR(3))     AS chr
       FROM     dual
       )
  WHERE     txt = chr
  ;
  

  Try:

  TO_CHAR (1.000, 'FM000')
  

  By default, TO_CHAR leaves place the beginning of the string to a sign less, in which case he should ever one, TO_CHAR (1,000, '000') returns makes 4 characters, not 3. "FM" in the format said TO_CHAR do not add a space.

  If it does not, after the release of DUMP (txt) for the few lines that you can't match, so that we can see exactly what is in them.

• When I use the mail merge with excel file, after I press ok the progress bar indicates "NaN", mail project window crashes. My record is nice little CVS n

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  I am attaching the screenshot

  I solved the problem
  has been st@pid excel

  I created a CSV file in openoffice calculator and everything went smoothly

• How to take a column of duplicate names and fill a different column with the same names, excluding duplicates?

  How to take a column of duplicate names and fill a different column with the same names, excluding duplicates?

  I find easier to use this copy separate Automator Service (download Dropbox).

  To install in your numbers > Services, double-click menu just the package downloaded .workflow and if necessary give permissions in system preferences > security & privacy.

  To use, just:

  1. Select the cells in the column with duplicate names.
  2. Choose separate copy in numbers > Services menu.
  3. Click once in the upper cell where you want the deduplicated values appear.
  4. Command-v to paste.

  SG

• How to use Windows media player with the windows Task Scheduler (7)?

  Original title: why it is so difficult... question of windows media player 12

  You want to use Windows media player with windows (7) Task Scheduler.   We have a pc, everything that appears on the screen is also pumped to our community cable channel, normally a slideshow in loop is the show, however, sometimes via a scheduler interrupt the slideshow to play a video (say a video of our last Board of Directors meeting) and to make videos, ideally the slideshow returns.

  Using Microsoft software, in this case, Windows Media Player v12.0.7601.18150, Task Scheduler 1.0, two things must happen.

  1 Task Scheduler launch a video in fullscreen / top of window.

  2. when the video is finished, wmp is closed.

  Well, 1 works fine.  The Task Manager launching wmp in full screen.  And a framework of wmp switches to allow a session of wmp be on top.

  However, a short time after launch wmp cut the screen down to a smaller version.

  And 2. closure of WMP fails to occur.  He remains on the screen waiting for human input.

  Any input appreciated.

  Charlie

  For "cuts WMP down to a smaller version", right click on the video game (during playback) and deselect ' auto Player size to contain video.

  For number 2, define your point of Task Scheduler task for the "end of task after X minutes" and therefore the value of X.  Then it will kill the instance of running Media Player after a large number of minutes.  So, it will absolutely immediately when the video is done playing, but it will be within 60 seconds and will be at least to remove WMP and let your slideshow be visible again.

• Using the Office extended with ThinkPad x 220

  I have an external monitor Acer AL2216W. It has a resolution of 1680 x 1050

  http://support.Acer.com/acerpanam/monitor/0000/Acer/AL2216W/AL2216Wsp2.shtml

  When I use mode extended desktop with the external monitor defined as main display, everything works on the screen both internal and external.

  However, if I set the internal monitor like main display, external display does not display (there is a large black border around the desktop computer).

  In both cases, the setting of the external monitor's resolution is 1680 x 1050.

  Is this a normal behavior?

  big black borders as desktoop a black border background image or all apps full screen on external LCD screen black borders?