Too bad you aren't checking whether your actions succeed, and neither are you using transactions when you are modifying your database. Now your examples are equivalent of Perl code that isn't strict, doesn't have warnings turned on, and isn't checking the return values of system calls.

Pity.

There's no execuse to not wrap your database modifying statements inside a transaction, and to not rollback on failure.

As for checking for the existance of a table, that's rather easy in Sybase and MSSQL: 

    SELECT 1 
      FROM sysobjects
     WHERE name = "whatever"  -- Name of the table
       AND type = "U"         -- User defined table.
                              -- Use "S" for a system table.

[download]

Abigail

In reply to Re: DBI recipes by Abigail-II
in thread DBI recipes by gmax

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.