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SQL query - how do you use the result?

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  • ANGEL SANCHEZ
    replied
    Re: SQL query - how do you use the result?

    Two things:
    1. I just change my server platform. I used to use DB2 on WinXP. In fact, Id reinstalled this "server" many times and always get the same problem. Other PowerBuilder Apps did not report any problem, but A5. So, I installed DB2 on a real W2k3 Server.
    2. I exported my Data from DBF to the new DB2 with A5 own utility.

    Now Active Link Tables work ok and fast.


    Originally posted by Tom Cone Jr View Post
    Angel, how about describing the error (and the fix), in case your experience will benefit others. For example the next DB2 guy who is having trouble. These threads become resources that help others later on, unless they end with a simple... "well, I found it and fixed it" if you see what I mean.

    Leave a comment:


  • Tom Cone Jr
    replied
    Re: SQL query - how do you use the result?

    Angel, how about describing the error (and the fix), in case your experience will benefit others. For example the next DB2 guy who is having trouble. These threads become resources that help others later on, unless they end with a simple... "well, I found it and fixed it" if you see what I mean.

    Leave a comment:


  • Al Buchholz
    replied
    Re: SQL query - how do you use the result?

    Originally posted by ANGEL SANCHEZ View Post
    Thank you!. I found an error on my Data Base. Now, Active Link Tables are working very well on DB2 V9.5
    What was the error? Others can learn from this and know what to look for....

    Leave a comment:


  • ANGEL SANCHEZ
    replied
    Re: SQL query - how do you use the result?

    Thank you!. I found an error on my Data Base. Now, Active Link Tables are working very well on DB2 V9.5


    Originally posted by NoeticCC View Post
    You seem to be mixing up Xbasic SQL/passive/active link table access in code, and the much more straightforward (if a browse showing these results is all you want!) steps of creating an active link table...

    http://support.alphasoftware.com/Wha...V9/NewInV9.htm

    The above link has screenshots of how such active link tables - where you can filter using arguments, as you seem to want to do - can be set up easily. All you do is then create a browse and or form based on that active link table.

    Leave a comment:


  • NoeticCC
    replied
    Re: SQL query - how do you use the result?

    You seem to be mixing up Xbasic SQL/passive/active link table access in code, and the much more straightforward (if a browse showing these results is all you want!) steps of creating an active link table...

    http://support.alphasoftware.com/Wha...V9/NewInV9.htm

    The above link has screenshots of how such active link tables - where you can filter using arguments, as you seem to want to do - can be set up easily. All you do is then create a browse and or form based on that active link table.

    Leave a comment:


  • Al Buchholz
    replied
    Re: SQL query - how do you use the result?

    What I saw in your first post is more than a simple active link table. It looks to me like you are using some code.

    It's very difficult to diagnose from afar with so little to work on.

    What type of SQL database are you tying to connect to? If you can't connect with an active link table, then I'd make a series of screen shots showing what you've done, or a video showing the step by step process that you are doing.

    Leave a comment:


  • ANGEL SANCHEZ
    replied
    Re: SQL query - how do you use the result?

    thanks Al for taking time to this.

    If you read my first post I reported that with Active Link I only get blank records in my forms.

    Do you have the solution?

    Originally posted by Al Buchholz View Post
    See post #4 above.... If a passive link table does fit your needs, use an active link table (it's designed to add, update, and delete in the SQL table.).....

    Leave a comment:


  • Al Buchholz
    replied
    Re: SQL query - how do you use the result?

    Originally posted by ANGEL SANCHEZ View Post
    OK OK OK

    Pasive Link Tables work fine, but they are not a solution because It needs to UPDATE, to DELETE or to ADD records in the remote SQL Data Base.

    any suggest?
    See post #4 above.... If a passive link table does fit your needs, use an active link table (it's designed to add, update, and delete in the SQL table.).....

    Originally posted by Al Buchholz View Post
    Then use a passive or active link table...

    Leave a comment:


  • ANGEL SANCHEZ
    replied
    Re: SQL query - how do you use the result?

    OK OK OK

    Pasive Link Tables work fine, but they are not a solution because It needs to UPDATE, to DELETE or to ADD records in the remote SQL Data Base.

    any suggest?


    Originally posted by ANGEL SANCHEZ View Post
    That was a goal from the goal keepper!!!!

    It works fine with Passive table.

    Thanks a lot, Mario.

    Leave a comment:


  • ANGEL SANCHEZ
    replied
    Re: SQL query - how do you use the result?

    Originally posted by Karaiskakis View Post
    I had the same problem a few days ago...
    the solution is very simple
    1. use the SQL Genie to create the statement (OK you have done this)
    2. use the results to create a passive table which you would be able to use to show your data!!
    3.the next problem that you solve will be the refresh the data to that passive table (that actually re-runs your SQL statement) -- use refresh passive table before opening your form - browser

    hope this will help you!!
    That was a goal from the goal keepper!!!!

    It works fine with Passive table.

    Thanks a lot, Mario.

    Leave a comment:


  • Karaiskakis
    replied
    Re: SQL query - how do you use the result?

    I had the same problem a few days ago...
    the solution is very simple
    1. use the SQL Genie to create the statement (OK you have done this)
    2. use the results to create a passive table which you would be able to use to show your data!!
    3.the next problem that you solve will be the refresh the data to that passive table (that actually re-runs your SQL statement) -- use refresh passive table before opening your form - browser

    hope this will help you!!

    Leave a comment:


  • NoeticCC
    replied
    Re: SQL query - how do you use the result?

    Originally posted by ANGEL SANCHEZ View Post
    Has someone found manuals about:

    <tbl>.ServerSideQueryRun()
    <tbl>.ServerSideQueryRetract()
    <tbl>.ServerSideQueryRetractAll()
    <tbl>.ServerSide_Records_Get()


    ??

    Ive tried to use the first one, but I only get blanks records. My code is:


    tempP = Form.view("aForm")
    ok = tempP.ServerSideQueryRun("aField="+quote(XUO))

    where XUO is a variable with the filter value.
    I dont get any errors, but only blanks records. Ive tried with MS SQL2K5 and IBM DB2 V9. Both, same results.

    Im migrating from DBF to SQL with active-links tables.

    Thanks in advance

    Angel
    I believe the functions in question are ones to use when a browse or form is open.... beyond that I have no clue... if there is any documentation on them it will be under "What's new in Version 9" in the help section here: http://support.alphasoftware.com/Wha...V9/NewInV9.htm

    (Under xBasic you will find the equivalent of the help file entries under <layout>.ServerSideQueryRun() and so forth)

    If you want to execute a SQL query in Xbasic, it is more useful to do so against the database directly, such as sql_records_get() and so forth.

    Leave a comment:


  • ANGEL SANCHEZ
    replied
    Re: SQL query - how do you use the result?

    Has someone found manuals about:

    <tbl>.ServerSideQueryRun()
    <tbl>.ServerSideQueryRetract()
    <tbl>.ServerSideQueryRetractAll()
    <tbl>.ServerSide_Records_Get()


    ??

    Ive tried to use the first one, but I only get blanks records. My code is:


    tempP = Form.view("aForm")
    ok = tempP.ServerSideQueryRun("aField="+quote(XUO))

    where XUO is a variable with the filter value.
    I dont get any errors, but only blanks records. Ive tried with MS SQL2K5 and IBM DB2 V9. Both, same results.

    Im migrating from DBF to SQL with active-links tables.

    Thanks in advance

    Angel

    Leave a comment:


  • MikeC
    replied
    Re: SQL query - how do you use the result?

    Ulf,

    I just read through most of the pages you provided a link to in which you were trying to substantiate your premise that
    using a native A5 query which should have been automatically translated to SQL on active links
    Here is a quote from just a small part of those pages and there is another section just after this quote that presents yet another way to query the active link SQL and is basically the same scenario.
    The Query Optimizer uses these table methods to determine which part of a filter can be executed on the server and which part must be executed locally and whether the sorting can be done on the server:
    <tbl>.to_sql_filter(C filterExpression, c separator)
    <tbl>.to_sql_order(C orderExpression, c separator)
    <tbl>.to_sql_expression(C expression)
    This is quite a bit different from just having a local query.

    I gather from this and what comes after this that sure, a local query can be done on whatever records you already have brought over from the active linked SQL into a local table---but seeing as how not all of the records have been brought over, how do you expect to query the SQL records unless you specifically tell Alpha to do so using the above quoted query syntax or what follows this right after (in your link)??

    I have no knowledge of doing much of this other than using a Where clause to query an outside database such as SQL and am just going by what is spelled out in the help file (that you presented in the link).... I hope that I am not offending you but it sure seems rather straightforward and well written to me! I cannot see where you saw the implication that you have asked about. Maybe if you could show me (us), then if ambiguous a note sent to Alpha to straighten it out for future users would be in order (the Comments hotspot located at the bottom of all the documentations).

    If it actually did as you are thinking then I would become rather confused as that is not what the help file (your link) states.

    Leave a comment:


  • Tim Kiebert
    replied
    Re: SQL query - how do you use the result?

    I don't use SQL backends but after a quick look at the .ServerSideQueryRun() function I reckon it doesn't take SQL arguments. I think it just takes standard A5 filter syntax. The function probably creates the arguments as part of its own process using the filter you supply. Since the code in your point 1 works and going by normal A5 filter syntax I would say you have to use something like
    Code:
    search_name = "000002"
    v9_test.ServerSideQueryRun("ID= ' "+search_name+" ' ")  'spaces added around single quotes for clarity
    or
    Code:
    search_name = "000002"
    v9_test.ServerSideQueryRun("ID=\""+search_name+"\"")
    or
    Code:
    search_name = "000002"
    v9_test.ServerSideQueryRun("ID="+quote(search_name))

    Leave a comment:

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