From time to time you may have the need to grab the top X number of rows returned from a table. For instance “give me the 10 vendors we pay the most from the voucher table”. This might seem impossible in something like query as there is no way to sto…
Contacts Provider 电话簿(注:联系人,联络人.通信录)提供者 ------------------------------- QUICKVIEW 快速概览 * Android's repository of information about people. * Android的关于人的信息的仓库. * Syncs with the web. * 与互联网同步. * Integrates social stream data. * 集成社交流数据. IN THIS DOCUME…
Installation Via Laravel Installer First, download the Laravel installer using Composer. composer global require "laravel/installer=~1.1" Make sure to place the ~/.composer/vendor/bin directory in your PATH so the laravel executable is found whe…
JDBC performance tuning with optimal fetch size February 1, 2009 31 Comments Tuning performance using fetch size is an old technique some of you might already be using this configuration; some may know about it but may not have implemented. Recently…
Oracle Flashback Transaction Query with Oracle Flashback Version Query In this example, a database administrator does this: DROP TABLE emp; CREATE TABLE emp ( empno NUMBER PRIMARY KEY, empname VARCHAR2(16), salary NUMBER ); INSERT INTO emp (empno, em…