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  • Microsoft SQL Server 2012 管理 (1): 安装配置SQL Server 重点

    SQL Server 可以在实例,数据库,列,查询分别指定排序规则

    /* 
    Module 1 - working with Clollations
    */
    -- 1.1 Obtain the Instance Collation from the GUI
    --Create a Database without specifying a specific Collation
    Create Database UnspecifiedCollationDB;
    GO
    
    -- Use the statement bellow(code) to verfiy that the new database inherited the Collation
    USE UnspecifiedCollationDB;
    GO
    
    Select DB_NAME() as Current_Database, DATABASEPROPERTYEX('UnspecifiedCollationDB','Collation') DatabseCollation
    
    -- 1.2 Create a Database with a Collation that overrides the Instance Default Collation
    Create Database MultiLingualSpeakDB
        Collate Arabic_CI_AI
    --Use The GUI to obtain the collation of the new database.
    
    -- 1.3 Create Text-base Columns Within a Table with Collations that overide the Database
    USE MultiLingualSpeakDB
    Create Table MixedSpeakTable
        (
        ProductDI int IDENTITY
        ,EnglighProdName nvarchar(30)  COLLATE Latin1_General_CI_AI    NOT NULL
        ,ArabicProdName nvarchar(30)           NOT NULL
        ,GreeekProdName nvarchar(30)   COLLATE Greek_CS_AS_KS          NOT NULL
        ,JapaneseProdName nvarchar(30) COLLATE Japanese_90_CI_AS_KS_WS NOT NULL
    );
    --Use the GUI o drill down to the new table, then to one the columns and obtain 
    --column Collation settting.
    
    -- 1.4 Open a new query window to the tempDB database
    
    USE tempdb
    GO
    --Retrieve and discuss the collation of the system and tempdb
    Select SERVERPROPERTY('Collation') as SystemCollation,
        DATABASEPROPERTYEX('tempdb','Collation') as DatabaseCollation;
    GO
    
    -- Create and populate a table with different column collations
    Create Table dbo.TestCharacter
    (
        id int IDENTITY,
        CIData varchar(10) COLLATE Latin1_General_CI_AS,
        CSData varchar(10) COLLATE Latin1_General_CS_AS
    )
    
    INSERT INTO dbo.TestCharacter(CIData,CSData)
    VALUES ('Test Data','Test Data');
    GO
    
    -- Execute queries that try to match the same
    -- values from eache column with all lower case
    SELECT * FROM     dbo.TestCharacter
    WHERE CIData='test data';
    -- Now query the case-sensitive column
    SELECT * FROM     dbo.TestCharacter
    WHERE CSData='test data'; -- No rows retruned
    GO

    --Execute a query to perform a case-insensitive --search on the case-sensitive data SELECT * FROM dbo.TestCharacter WHERE CSData='test data' COLLATE Latin1_General_CI_AS; -- Try to execute a query that compares the two columns -- that have different collations. this will fail -- as the collation conflict cannot be resolved SELECT * FROM dbo.TestCharacter WHERE CIData=CSData;
    -- Execute the qery while specifying a collation SELECT * FROM dbo.TestCharacter WHERE CIData=CSData COLLATE Latin1_General_CI_AS;

    合理分配文件组提升数据库性能

    /*
    Module 1 Create a Database with Advanced Design; Multiple Data and Multiple Filegroups
    */
    
    --Enable xp_CMDSHELL to run operating system commands with T-SQL code.
    
    EXEC master.dbo.sp_configure 'Show Advanced Options',1;
    RECONFIGURE;
    EXEC master.dbo.sp_configure 'xp_CmdShell',1; 
    RECONFIGURE;
    -----------------
    
    -- Make "Drive Latters" to simulate existence of may drive letters(LUNs)
    -- for the advanced database.
    USE master
    Go
    EXEC XP_CMDSHELL 'MD c:Drive_D', no_output
    EXEC XP_CMDSHELL 'MD c:Drive_E', no_output
    EXEC XP_CMDSHELL 'MD c:Drive_F', no_output
    EXEC XP_CMDSHELL 'MD c:Drive_G', no_output
    EXEC XP_CMDSHELL 'MD c:Drive_H', no_output
    EXEC XP_CMDSHELL 'MD c:Drive_I', no_output
    EXEC XP_CMDSHELL 'MD c:Backups', no_output
    GO
    
    -- 2.1 Create the AdvancedDB
    CREATE DATABASE AdvancedDB
    /* Scripte assumes the existence of c:Drive_D etc, 
    to SIMULATE multipledisk drives.
    */
    ON Primary
    -- NOTICE below non-uniform SIZE, MAXSIZE,and FILEGROUP parmerters!
    (
        Name=AdvancedDBF1_PrimaryFG
            ,Filename='c:Drive_DAdvancedDB_F1_PrimaryFG.MDF'
            ,Size=16MB
            ,MaxSize=30
            ,FileGrowth=10%
    )
    ,FILEGROUP CurrentDataFG
        (
        Name=AdvancedDBF1_CurrentDataFG
            ,Filename='c:Drive_EAdvancedDB_F1_CDFG.ndf'
            ,Size=6MB
            ,MaxSize=15
            ,FileGrowth=10%
        )
        ,(
        Name=AdvancedDBF2_CurrentDataFG
            ,Filename='c:Drive_EAdvancedDB_F2_CDFG.ndf'
            ,Size=6MB
            ,MaxSize=15
            ,FileGrowth=10%
        )
    ,FILEGROUP ArchiveDataFG
        (
        Name=AdvancedDBF1_ArchiveDataFG
            ,Filename='c:Drive_FAdvancedDB_F1_AFG.ndf'
            ,Size=6MB
            ,MaxSize=15
            ,FileGrowth=10%
        )
        ,(
        Name=AdvancedDBF2_ArchiveDataFG
            ,Filename='c:Drive_GAdvancedDB_F2_AFG.ndf'
            ,Size=6MB
            ,MaxSize=15
            ,FileGrowth=10%
        )
    LOG ON
        (
        Name=AdvancedDBLogF1
            ,Filename='c:Drive_GAdvancedDB_LogF1.ldf'
            ,Size=6MB
            ,MaxSize=15
            ,FileGrowth=10%
        )
    ;
    
    --Create a Table (space-occupying-object) withut specifying a FileGroup
    USE AdvancedDB;
    GO
    
    Create TABLE dbo.tb1_Table1
        (
        COl1 nvarchar(20)
        )
    Create TABLE dbo.tb1_Table2
        (
        COl1 nvarchar(20)
        )
        ON ArchiveDataFG
    -- Use the GUI to show the FileGroups and Files of AdvancedDB
    -- Use the GUI to show the two tables one being on the default FG
    -- and the other table being on a designated FG.
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  • 原文地址:https://www.cnblogs.com/yanyan45/p/3948493.html
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