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Chris Jones' Blog:
More on PHP and Oracle 11gR2 Improvements to Client Result Caching
March 04, 2011 @ 09:56:33

Chris Jones has posted more information to his Oracle blog about the caching and other improvements that come along with the Oracle 11gR2 release that can be used in PHP applications.

Oracle 11.2 brought several improvements to Client Result Caching. CRC is way for the results of queries to be cached in the database client process for reuse. [...] PHP OCI8 as a "client" of the database can use CRC. The cache is per-process, so plan carefully before caching large data sets. Tables that are candidates for caching are look-up tables where the network transfer cost dominates.

Like many of the other server-side tools Oracle has to offer, it's pretty simple to enable this caching. Before you had to add a custom bit to your query to tell it to enable the caching. Now it's as simple as setting it up on the CREATE or ALTER for the table - nothing extra for the developer to do.

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oracle caching client result create alter


Nessa's Blog:
Convert Database to UTF-8
December 13, 2007 @ 10:23:00

Nessa has posted a quick way to convert a database from whatever character set it's currently on over to UTF-8 with a handy PHP script.

When you're dealing with special characters in a database, you have to make sure that the charset and collation are dumped *with* the database, so that when you move it to another server the tables and data create properly. The biggest annoyance so far is converting tables back to UTF-8, as when this is done through the MySQL shell or phpmyadmin is had to be done table-by-table.

The script logs into the database and pulls all of the table information out (could be a lengthy list depending on the database) and runs an ALTER TABLE to change its character set to 'UTF8'.

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characterset utf8 convert alter database table characterset utf8 convert alter database table


Vinu Thomas' Blog:
Modifying your MySQL databases to be UTF-8 compliant
December 28, 2006 @ 07:47:00

There's a quick tip from Vinu Thomas on his blog for anyone having issues with UTF-8 data in a MySQL database (as accessed by PHP).

Most of us have had problems with UTF-8 problems in PHP and MySQL. Here's how to modify your database and table to be UTF-8 compliant. Most of the time we do set the character set to utf8 but forget to set the collation set to utf8.

He includes both SQL statements you'll need to make the transition - two ALTER statements that update the properties of a database and change the encoding on a specific table to UTF-8 compatibility.

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mysql database modify utf8 compliant alter sql statement mysql database modify utf8 compliant alter sql statement



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