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General Information libdbi implements a database-independent abstraction layer in C, similar to the DBI/DBD layer in Perl. Writing one generic set of code, programmers can leverage the power of multiple databases and multiple simultaneous database connections by using this framework. In order to utilize the libdbi framework, you need to install drivers for a particular type of database. The driver
Filter::SQL ä½ã£ã - id:kazuhookuã®ã¡ã¢ç½®ãå ´ã«ãããFilter::SQLã使ããããã¦ä»æ¹ããªãã¨ãã話ã åã«ãæ¸ããããã©ç§ã¯Perlã®ãã¼ã¿ãã¼ã¹ããã°ã©ãã³ã°ã«è¦ææèããããSQLãPerlã人並ã¿ã«ã¯ã§ããããã©ããã®ä¸¡æ¹ãã¾ãã£ãã®ã¯ã©ããã ãã ã ã ãããããã¡ãã¯SELECTã ããããã°ããã®ã« use 5.010; use DBI; my $dbh = DBI->connect("dbi:SQLite:dbname=foo.db"); my $sth = $dbh->prepare("SELECT * FROM table WHERE bar > 1"); $sth->execute; while ( my $row = $sth->fetch ) { say join "\t", @$row; }ã®ãããªåªæãæ¸ããªãã¦ã¯ãªããªãã®ã¯è¦ç
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Introduction PostgreSQL is the most advanced and flexible Open Source SQL database today. With this power and flexibility comes a problem. How do the PostgreSQL developers tune the default configuration for everyone? Unfortunately the answer is they can't. The problem is that every database is not only different in its design, but also its requirements. Some systems are used to log mountains of da
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