知識過客

最近開始想要研究Nginx...找到一個很詳盡的壓測結果 給大家參考： http://www.cnblogs.com/killkill/archive/2010/04/14/1711810.html

在Hibernate中使用Connection Pool來增強與資料庫連線的穩定度... <!-- configuration pool via c3p0 --> < property name = "connection.provider_class" > org.hibernate.connection.C3P0ConnectionProvider </ property > < property name = "c3p0.min_size" > 0 </ property > < property name = "c3p0.max_size" > 30 </ property > < property name = "c3p0.timeout" > 600 </ property > < property name = "c3p0.max_statements" > 0 </ property > < property name = "c3p0.acquire_increment" > 1 </ property > < property name = "c3p0.idle_test_period" > 60 </ property >

兩種從MSSQL執行外部檔案的方式： 1. Execute file from SQL Tool -- To allow advanced options to be changed. EXEC sp_configure 'show advanced options', 1 GO -- To update the currently configured value for advanced options. RECONFIGURE GO -- To enable the feature. EXEC sp_configure 'xp_cmdshell', 1 GO -- To update the currently configured value for this feature. RECONFIGURE GO EXEC master..xp_cmdshell   ' c:\Scripts\create_db.sql' 2. Execute file from CMD Tool SQLCMD -E -d master -i c:\Scripts\create_db.sql

兩種儲存MySQL資料到檔案的方法 Piping the SQL into the database echo "SELECT * FROM TABLE_NAME" | mysql -uUSERNAME -pPASSWORD DATABASENAME > /tmp/outfile.txt;    Using an external SQL file. mysql -uUSERNAME -pPASSWORD DATABASENAME < /tmp/sql.sql > /tmp/outfile.txt;