SQL Query - View

  • Hi,

    I have a table. Its containing query to create a view.

    Create Table #Temp (Query Varchar(8000)

    Insert into #Temp Select 'Create View Vw_Name as'

    Insert into #Temp Select 'Select Col1,Col2,....Col15 from Table_20160501'

    Insert into #Temp Select 'Select Col1,Col2,....Col15 from Table_20160502'

    .

    .

    .

    Insert into #Temp Select 'Select Col1,Col2,....Col15 from Table_20160531'

    Total length of the query in a temp table is 25K.

    Now i want to create the view which is available in a #temp table.

    Thanks in Advance...

  • based on your design, i'd guess you have to refresh this view every day, since it looks like you build one table per day.

    i would bet that those individual tables might actually come from yet another table that already has all the data for all days/months/years in it, is it possible to find and query that data, or aggregate it into another table?

    Create View Vw_Name

    as

    Select Col1,Col2,....Col15 from Table_20160501 UNION ALL

    Select Col1,Col2,....Col15 from Table_20160502 UNION ALL

    --...

    Select Col1,Col2,....Col15 from Table_20160531

    Lowell


    --help us help you! If you post a question, make sure you include a CREATE TABLE... statement and INSERT INTO... statement into that table to give the volunteers here representative data. with your description of the problem, we can provide a tested, verifiable solution to your question! asking the question the right way gets you a tested answer the fastest way possible!

  • balu.arunkumar (5/31/2016)


    Hi,

    I have a table. Its containing query to create a view.

    Create Table #Temp (Query Varchar(8000)

    Insert into #Temp Select 'Create View Vw_Name as'

    Insert into #Temp Select 'Select Col1,Col2,....Col15 from Table_20160501'

    Insert into #Temp Select 'Select Col1,Col2,....Col15 from Table_20160502'

    .

    .

    .

    Insert into #Temp Select 'Select Col1,Col2,....Col15 from Table_20160531'

    Total length of the query in a temp table is 25K.

    Now i want to create the view which is available in a #temp table.

    Thanks in Advance...

    You can't use a temp table in a view. It doesn't make sense. What would happen if the temp table doesn't exist?? Why not use a few UNIONS and forget the temp table entirely?

    Something like this.

    Create View Vw_Name as

    Select Col1, Col2, Col15 from Table_20160501 UNION ALL

    Select Col1, Col2, Col15 from Table_20160502 UNION ALL

    Select Col1, Col2, Col15 from Table_20160531

    _______________________________________________________________

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  • Something like this?

    DECLARE @sql varchar(max);

    SET @sql = (SELECT Query + CHAR(10) FROM #Temp FOR XML PATH(''), TYPE).value('./text()[1]', 'varchar(max)');

    EXEC( @sql);

    Or this:

    DECLARE @sql varchar(max) = '';

    SELECT @sql += Query + CHAR(10)

    FROM #Temp;

    EXEC( @sql);

    Remember to include UNION ALL if you don't have them in your table.

    Luis C.
    General Disclaimer:
    Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?

    How to post data/code on a forum to get the best help: Option 1 / Option 2
  • Thanks lot Luis Cazares... Its working..

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