.SELECT TOP 规定返回记录的数目(对于大型数据库很有用的) SELECT TOP number|percent column--name FROM table; 1.2 SELECT LIMIT 限制数量的 ; 1.3 ROWNUM 限制 ; 返回Person表中不大于5个的数据: PERCENT * FROM websites: 返回前 百分之50的数据: .LIKE 用于在WHERE语句中搜索列中的制定模式 SELEC name FROM table WHERE name LIKE
1.下载JDK http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html 2.下载Maven(下载地址:https://maven.apache.org/download.cgi),解压. SystemRequirements: JDK Maven 3.3+ require JDK 1.7 or above to execute - they still allows you to bu