As runrig said, syntaxes can vary... so here are some common ones:
PostgreSQL, MySQL, and some other have variants of the LIMIT x OFFSET y clause. This always (to my knowledge) appears as the last clause in the query.
ORDER BY field1, field2
-- with OFFSET
LIMIT 10 OFFSET 1
-- implicit OFFSET (MySQL)
In Oracle you can use the "rownum" indexing of the recordset to return a specific number of records.
FROM table1 a, table2 b
WHERE rownum <= 10
If you're working with an M$ DBMS like SQL Server (I refuse to allow Access to be called a DBMS) or one Informix's you can use the TOP syntax. TOP is part of the SELECT clause as seen below.
SELECT TOP 10 field1, field2, ... ,fieldn
I know nothing of DBI so the next statement is a generality. The benefits to using the limiting at the DBMS side are smaller recordsets transfered back and often quicker queries (DBMS dependant), you do loose a certain amount of portability however. Staying with straight ANSI SQL and datatypes is always a problem though.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||