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Button on Form Exceeds Maximum Open Tables

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    #1

    Button on Form Exceeds Maximum Open Tables

    I am really a novice, poking around in xBasic without a manual...probably dangerous. Anyway, can you help? Thanx, Denny -- P.S. A .TXT script file is attached - NOT zipped. (My new email is [email protected]) The basic facts are these:
    1) Running Alpha5v4.03 build 230
    2) Using a Button on a form for table "glaspatt.dbf"
    3) Looking up contents of "glaspatt" field "searchcode" in child table "glaschacnodups.dbf" (linked one-to-many) on its field "searchcode" to match up with the correct "membername" (a misnomer, since "membername" is really only a definition of "searchcode"), and display via HTML the correct definition

    There are about 3,900 records in "glaspatt.dbf" - each with up to forty (40) 5-letter codes) in a single field "searchkeys" - and 4,000 definitions in "glaschacnodups.dbf" to match against each of the letter codes.

    The code produces about 315 complete webpages before returning this error:
    "ScriptOnPush Line...
    tchac=table.open(tablenamechac)
    maximum open tables exceeded"
    --------------------------
    4) Sample webpage contains the following in table format:

    �9���Characteristic(s)�Indexed�for
    �Clear Stork �Pattern��[Universal #�1293-01-A-01]
    AB012��Crane
    AB013��Stork
    AC007��Ovals: Vertical
    AN003��Plant: Pussy Willow
    BA002��Fan Impressed - 02 Straight Rays
    BB012��Arch: Top Rounded - Eyebrow Curve East To West
    BM009��Medallion: Oval - Horizontal
    EA001��Early American Pattern Glass [EAPG]
    Counter� 315
    Counterchac� 3378 �
    Completed the��9��Indexed�Characteristics�for�"Clear Stork "Pattern���[Universal #�1293-01-A-01]
    Tags: None
    #2
    RE: Button on Form Exceeds Maximum Open Tables

    Denny,

    Your script opens the table 'tablenamechac' on each iteration through the loop assigns the same pointer (tchac) to the latest opened instance. I don't see that it closes each instance of that table when it's finished with it. Alpha may be opening 314 instances of the table before it runs out of memory or file handles...

    Try inserting a

    tchac.close()

    at the bottom of the inner loop, before the script loops back to open another instance of the table.

    The Xbasic Reference Manual should be in your Books subfolder in the Alpha Five program directory.

    -- tom

    Comment

      #3
      RE: Button on Form Exceeds Maximum Open Tables

      Hi Tom, Thanks for responding...

      Using tchac.close() returns
      "invalid table handle"
      Using tchac.close(tablenamechac) returns
      "Internal - invalid argument number

      Any other ideas? Meanwhile, off to see if the xBasic manual is on my hard drive!

      Thanks, Denny

      Comment

        #4
        RE: Button on Form Exceeds Maximum Open Tables

        Trust Tom.

        The error you indicate seems to be saying that the tchac.close() statement is being executed before the tchac=table.open(tablenamechac).

        Double chech where you inserted the close.

        tchac=table.open(tablenamechac) defines tchac as a pointer variable (handle) to the tablenamechac table. If tchac is invalid, it hasn't been assigned. The .close() method does not require/does not allow the table name (tablenamechac) as a parameter.
        There can be only one.

        Comment

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