T-SQL入門攻略之创建与查看数据
创建数据库 IF DB_ID('MyDatabase6') IS NOT NULL DROP DATABASE MyDatabase6; CREATE DATABASE MyDatabase6 ON PRIMARY ( -- 主资料档案 NAME = ' LogicNameOfDataFile6_1', FILENAME = 'C:/Program Files/Microsoft SQL Server/MSSQL10.MSSQLSERVER/MSSQL/
创建数据库
IF DB_ID('MyDatabase6') IS NOT NULL
DROP DATABASE MyDatabase6;
CREATE DATABASE MyDatabase6
ON PRIMARY
( -- 主资料档案
NAME = ' LogicNameOfDataFile6_1',
FILENAME
= 'C:/Program Files/Microsoft SQL Server/MSSQL10.MSSQLSERVER/MSSQL/DATA/DataFile6_1.mdf',
SIZE = 5MB , -- 设置初始大小
MAXSIZE = 100MB, -- 设置资料档案的最大存储空间
FILEGROWTH = 15% -- 设置自动增长幅度
),
FILEGROUP UserFG6_2 -- 将资料库档DataFile6_2.ndf分配到文件组UserFG6_2中
( -- 次要资料档案
NAME = ' LogicNameOfDataFile6_2',
FILENAME
= 'C:/Program Files/Microsoft SQL Server/MSSQL10.MSSQLSERVER/MSSQL/DATA/DataFile6_2.ndf',
SIZE = 2MB , -- 设置初始大小
MAXSIZE = 100MB, -- 设置资料档案的最大存储空间
FILEGROWTH = 10% -- 设置自动增长幅度
),
FILEGROUP UserFG6_3 -- 将资料库档DataFile6_3.ndf分配到文件组UserFG6_3中
( -- 次要资料档案
NAME = ' LogicNameOfDataFile6_3',
FILENAME
= 'C:/Program Files/Microsoft SQL Server/MSSQL10.MSSQLSERVER/MSSQL/DATA/DataFile6_3.ndf',
SIZE = 3MB , -- 设置初始大小
MAXSIZE = 100MB, -- 设置资料档案的最大存储空间
FILEGROWTH = 5% -- 设置自动增长幅度
)
LOG ON(
-- 设置日志档的逻辑名称
NAME = 'LogicNameOfLogFile6',
-- 设置日志档
FILENAME
= 'C:/Program Files/Microsoft SQL Server/MSSQL10.MSSQLSERVER/MSSQL/DATA/LogFile6.ldf.ldf',
SIZE = 10MB, -- 设置初始大小
MAXSIZE = 100MB, -- 设置资料档案的最大存储空间
FILEGROWTH = 1MB -- 设置自动增长幅度
)
查看数据库
查看数据库有多种方法,可以查看系统表,也可以用系统存储过程
SELECT type_desc,
name,
physical_name,
size,
max_size,
growth
FROM sys.database_files --查看系统 aísys.database_files
GO
sp_helpdb
存储过程sp_helpdb提供了查看数据库基本信息的功能,,它实际上是对若干t-sql命令的封装
这些命令是从相关的系统表中抽取数据而得到数据库基本信息。
语法如下
sp_helpdb 数据库名

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