lijie2049的博客

//创建数据库并导入数据 1. create database{database_name}; 2.use{database_name}; 3. create table docs(line string); 4. load data inpath '/training/{student_name}/inceptor_data/wordcount' into table docs; //创建结果表 create table wc(word string, totalword int)...

考虑到生产环境可能无法联网所以直接采用RPM安装。 下载RPM装包： http://www.postgresql.org/download/ postgresql94 - PostgreSQL client programs and libraries postgresql94-contrib - Contributed source and binaries distribute...