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hive-内部表与外部表的区别
本文以例子的形式介绍一下Hive内表和外表的区别。例子共有4个:不带分区的内表、带分区的内表、不带分区的外表、带分区的外表。 1 不带分区的内表 #创建表 create table innerTable(id int,name string) row format delimited fields terminated by '|';(show tables发现没有innerTabl...
分类:其他好文   时间:2015-06-20 11:54:34    阅读次数:137
HDU-1050-Moving Tables(C++ && 贪心初步)
Moving Tables Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 23147    Accepted Submission(s): 7779 Problem Description The famous ...
分类:编程语言   时间:2015-06-20 09:16:52    阅读次数:163
启动mysql问题Can't open and lock privilege tables: Table 'mysql.host' doesn't exist
启动mysql出现问题/etc/init.d/mysqldstartMySQLserverPIDfilecouldnotbefound![FAILED]StartingMySQL......................................TheserverquitwithoutupdatingPIDfile(/data/mysql/mysql_3306/data/mysql.pid).[FAILED]查看错误日志15061915:57:19[Note]Serversoc..
分类:数据库   时间:2015-06-19 21:45:00    阅读次数:193
How to create zebra stripes in JSP tables
How to create zebra stripes in JSP tables
分类:Web程序   时间:2015-06-18 21:51:55    阅读次数:92
查看mysql数据库大小、表大小和最后修改时间
查看数据库表基本信息。select * from information_schema.TABLES where information_schema.TABLES.TABLE_SCHEMA = '数据库名' and information_schema.TABLES.TABLE_NAME = '表...
分类:数据库   时间:2015-06-18 19:13:02    阅读次数:141
powerdesigner vba 创建表和列
手工建立powerdesigner的表和列非常麻烦,于是思考用vba实现,借鉴http://www.pudn.com/downloads447/sourcecode/database/detail1884121.html,具体如下: 创建表: Set mdl = ActiveModel set table = mdl.Tables.CreateNew table.Name = "table...
分类:编程语言   时间:2015-06-18 17:24:41    阅读次数:173
mysql 语句学习
Firstly, we need to know what contents tables have!select Date,sum(todayConsume) from industry2_consume where 2_department in ('V1','V2','地管','武管','地新...
分类:数据库   时间:2015-06-18 16:58:50    阅读次数:156
MySQL 基本操作
/* 启动MySQL */net start mysql/* 连接与断开服务器 */mysql -h 地址 -P 端口 -u 用户名 -p 密码/* 跳过权限验证登录MySQL */mysqld --skip-grant-tables-- 修改root密码密码加密函数password()update...
分类:数据库   时间:2015-06-17 12:49:55    阅读次数:140
Use LOB Storage
If LOB storage is not defined and LOB attribute size exceeds 4000 characters the attributes which overflow will automatically be placed in the tables tablespace in default configured LOB storage and i...
分类:其他好文   时间:2015-06-17 11:40:10    阅读次数:115
pt-online-schema-change 修改字段属性产生死锁
死锁信息如下:2015-06-1522:23:187f0266772700***(1)TRANSACTION:TRANSACTION1834696957,ACTIVE0secsettingauto-inclockmysqltablesinuse2,locked2LOCKWAIT4lockstruct(s),heapsize1184,1rowlock(s),undologentries1MySQLthreadid1008989,OSthreadhandle0x7f0265de0700,queryi..
分类:其他好文   时间:2015-06-17 02:04:09    阅读次数:167
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