1 DECLARE CustCursor SCROLL CURSOR
2 FOR
3 SELECT cust_id FROM Customers
4 WHERE cust_contact IS NULL;--定义游标CustCursor
5 OPEN CustCursor;--打开游标

去掉那玩意儿你会发觉安装极其快

3.4 删除设置

使用mssql-conf工具的unset命令

/opt/mssql/bin/mssql-conf unset network.tcpport
/opt/mssql/bin/mssql-conf unset memory.memorylimitmb
……

 

重启实例生效

[root@134test ~]# systemctl restart mssql-server

 

 

更新表中多少

澳门微尼斯人手机版 1

4. 参考

越来越多的配备,请参见微软的法定文书档案:

 

 

 

 

创建表

以此地点选追加

2. 环境

Linux: CentOS 7.4,SQL Server 2017 (RC2) – 14.0.900.75 (X64)

 

1 SELECT CustomerNo,CustomerShortName,CustomerState,Class from dbo.Customers
2 ORDER BY 4 DESC,2;

澳门微尼斯人手机版 2

3.1 内部存款和储蓄器节制

使用mssql-conf工具

/opt/mssql/bin/mssql-conf set memory.memorylimitmb 3500

 

重启数据库实例

systemctl restart mssql-server

 

 

SELECT CustomerState,COUNT(*) AS countNo
FROM dbo.Customers
WHERE CustomerNo LIKE '_TM%'
GROUP BY CustomerState
HAVING CustomerState='产品认可';

到这一步就无法点下一步了,卡壳状态

3.3 更改 TCP 端口

使用mssql-conf工具

/opt/mssql/bin/mssql-conf set network.tcpport <new_tcp_port>

 

重启实例生效

[root@134test ~]# systemctl restart mssql-server

 

测试

[root@134test ~# /opt/mssql/bin/mssql-conf set network.tcpport 1444
SQL Server needs to be restarted in order to apply this setting. Please run
'systemctl restart mssql-server.service'.
[root@134test ~]# systemctl restart mssql-server

 

[root@134test ~]# sqlcmd -S localhost -U sa
Password: 
Sqlcmd: Error: Microsoft ODBC Driver 13 for SQL Server : Login timeout expired.
Sqlcmd: Error: Microsoft ODBC Driver 13 for SQL Server : TCP Provider: Error code 0x2749.
Sqlcmd: Error: Microsoft ODBC Driver 13 for SQL Server : A network-related or instance-specific error has occurred 
while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct 
and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online..

 

[root@134test ~]# sqlcmd -S localhost,1444 -U sa
Password: 
1> 

 

 

DECLARE CustCursor SCROLL CURSOR
FOR
SELECT cust_id FROM Customers
WHERE cust_contact IS NULL;
OPEN CustCursor;
DECLARE @cursor1 CHAR(10);
FETCH NEXT FROM CustCursor INTO @cursor1
WHILE (@@FETCH_STATUS=0)--游标的循环
BEGIN
FETCH NEXT FROM CustCursor INTO @cursor1--将游标指向下一个值
END
SELECT @cursor1 AS TT;

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3. 矫正设置

SELECT CustomerNo FROM dbo.Customers
WHERE NOT CustomerNo LIKE'[QC]%'

澳门微尼斯人手机版 4

3.5 查看当前设置及布置文件

cat /var/opt/mssql/mssql.conf

 

以下是官方提供的二个演示配置。可依据实际必要直接改换/var/opt/mssql/mssql.conf,最终重启数据库实例生效。未在那文件中展示的全数安装均接受其暗中认可值。

[EULA]
accepteula = Y

[coredump]
captureminiandfull = true
coredumptype = full

[filelocation]
defaultbackupdir = /var/opt/mssql/data/
defaultdatadir = /var/opt/mssql/data/
defaultdumpdir = /var/opt/mssql/data/
defaultlogdir = /var/opt/mssql/data/

[hadr]
hadrenabled = 0

[language]
lcid = 1033

[memory]
memorylimitmb = 4096

[network]
forceencryption = 0
ipaddress = 10.192.0.0
kerberoskeytabfile = /var/opt/mssql/secrets/mssql.keytab
tcpport = 1401
tlscert = /etc/ssl/certs/mssql.pem
tlsciphers = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA
tlskey = /etc/ssl/private/mssql.key
tlsprotocols = 1.2,1.1,1.0

[sqlagent]
databasemailprofile = default
errorlogfile = /var/opt/mssql/log/sqlagentlog.log
errorlogginglevel = 7

[telemetry]
customerfeedback = true
userrequestedlocalauditdirectory = /tmp/audit

[traceflag]
traceflag0 = 1204
traceflag1 = 2345
traceflag = 3456

 

 

 

澳门微尼斯人手机版,收工

疑问

如上措施是法定的步骤,但使用SSMS去查看实例的内部存款和储蓄器设置,开采最大内部存款和储蓄器约束依然没有改造。不掌握为什么。使用sys.sp_configure去安顿最大内部存款和储蓄器则生效了。

 

EXEC sys.sp_configure N'show advanced options', N'1'  RECONFIGURE WITH OVERRIDE
GO
EXEC sys.sp_configure N'max server memory (MB)', N'3500'
GO
RECONFIGURE WITH OVERRIDE
GO
EXEC sys.sp_configure N'show advanced options', N'0'  RECONFIGURE WITH OVERRIDE
GO

 

 

使用INSERT SELECT一回插入多行

2.全安装

3.2 设置暗中认可数据或日志目录地方

创立自定义目录及改变目录权限

[root@134test ~]# mkdir -p /data/mssql_data/
[root@134test ~]# chown -R mssql:mssql /data/mssql_data/

 

使用mssql-conf工具

[root@134test ~]# /opt/mssql/bin/mssql-conf set filelocation.defaultdatadir /data/mssql_data/
SQL Server needs to be restarted in order to apply this setting. Please run
'systemctl restart mssql-server.service'.

 

重启数据库实例生效

systemctl restart mssql-server

 

测量试验(数据和日志文件都在那个目录下卡塔 尔(阿拉伯语:قطر‎

4> create database db2;
5> go

 

[root@134test ~]# cd /data/mssql_data/
[root@134test /data/mssql_data]# ll db*
-rw-rw---- 1 mssql mssql  3932160 2017-12-27 12:31 db1_log.ldf
-rw-rw---- 1 mssql mssql 12582912 2017-12-27 12:31 db1.mdf
-rw-rw---- 1 mssql mssql  8388608 2017-12-27 12:37 db2_log.ldf
-rw-rw---- 1 mssql mssql  8388608 2017-12-27 12:33 db2.mdf

 

假设供给独自修改日志的目录(如/tmp卡塔 尔(英语:State of Qatar)

/opt/mssql/bin/mssql-conf set filelocation.defaultlogdir /tmp/

 

 

去除整张表及其表结构

设置进度和二〇一六大意生机勃勃致,机器学习那款更完备了。(别的错误看看往期的消除呢:)

1. 前言

前生龙活虎篇配置SQL Server on
Linux(1卡塔尔,地址:
,是有关更换数据库排序法则的。已毕的准则跟在Windows平台差没多少,都以索要备份客商数据库,重新建立系统数据库来落实的,可是操作进度简化了。上面包车型地铁安顿是部分正规的装置,比方最大内部存款和储蓄器,默许数据文件地方,等。

 

1 SELECT RTRIM(CustomerNo)+'('+RTRIM(CustomerState)+')'
2 AS CustomerTitle
3 FROM Customers
4 ORDER BY CustomerNo DESC;--在上一条语句的基础上去掉字符串右边的空格

也足以从那些地点下载:

澳门微尼斯人手机版 5

同风流罗曼蒂克的改 https ==》http

排序OTiguanDE中华V BY并以列号指代某一列

若果用不到的能够去掉,然后再安装

除去游标

澳门微尼斯人手机版 6

DECLARE @tt INTEGER
EXEC CusCount @tt OUTPUT;
SELECT @tt AS Ccount;

借使您是朝鲜语的就以1033末尾,中文就以2052结尾

寻找在select第11中学留存而在select第22中学不设有的行

会提到:“安装程序不只怕与下载服务器联系。请提供 Microsoft
机器学习服务器安装文件的职位,然后单击“下一步”。可从以下职责下载安装文件” 
的解决方案

增添索引,系统依据目录火速查询数据

澳门微尼斯人手机版 7

IN操作符,检索在某些条件约束内的多寡

 —————————————————————————————————————–

事务管理,COMMIT显式提交

附录:业已不难安装完了怎么把机器学习无缝增加上去

游标的概念和动用

怕麻烦的自家间接分享包( 备用链接:
密码: xmsd)

新建无参数的存款和储蓄进度

澳门微尼斯人手机版 8

通配符的行使

下一步就足以点击了,然后跟着安装就可以

CREATE VIEW ProductCustomers AS
SELECT cust_name,cust_contact,prod_id
FROM Customers,Orders,OrderItems
WHERE Customers.cust_id=Orders.cust_id
AND Orders.order_num=OrderItems.order_num;
GO;

SELECT * FROM ProductCustomers;

澳门微尼斯人手机版 9

闭馆游标并释放能源

ed2k://|file|cn_sql_server_2017_developer_x64_dvd_11296175.iso|1769777152|E21AE7C3576C0BDF1BC0ADC541217FAC|/

NOT操作符,检索除某意气风发项之外的具备数据

澳门微尼斯人手机版 10

SELECT* INTO CustCopy
FROM Customers;--这条语句自动创建CustCopy表并将Customers表中的数据完全复制并填充过去

选料离线包的路线

SELECT C1.CustomerNo,C1.Class,C1.CustomerState
FROM Customers C1,Customers C2
WHERE C2.CustomerNo='CTM002'
AND C1.Class=C2.Class;--列出所有和CTM002的Class一样的客户

没玩过二〇一六一直上手2017的您还需注意一下ssms的标题,自个儿下载安装三个把,不然你的数据库正是命令行的了(老司机提议直接用VSCode的mssql插件卡塔 尔(英语:State of Qatar)

SELECT COUNT(*) AS countNO
FROM dbo.Customers
WHERE CustomerNo LIKE '_TM%'
GROUP BY CustomerState;

澳门微尼斯人手机版 11

SELECT AVG(TotalAmount) AS AvgAmount FROM dbo.Inspections;

SELECT COUNT(*) AS CountNum FROM dbo.Customers
WHERE CustomerState='销售机会';
SELECT CustomerNo FROM dbo.Customers
WHERE CustomerState='销售机会';

SELECT MAX(TotalAmount) AS MaxAmount FROM dbo.Inspections;
SELECT * FROM dbo.Inspections WHERE TotalAmount='126000'

SELECT * FROM dbo.Inspections;
SELECT SUM(TotalVolumn) AS SumV FROM dbo.Inspections;
SELECT TotalAmount+TotalGrossWeight AS SumV FROM dbo.Inspections;

SELECT COUNT(*) AS countNo,
MIN(TotalVolumn) AS minTV,
MAX(TotalVolumn) AS maxTV,
AVG(TotalVolumn) AS avgTV
FROM dbo.Inspections

1.先说最轻巧易行的安装:

何以利用三个已开垦的游标

看图

1 CLOSE CustCursor;
2 DEALLOCATE CustCursor;--释放游标占用的资源

下载前贮存你钦命的目录

更新表ALTER TABLE

澳门微尼斯人手机版 12

自行创立二个新表并完全复制另三个表的数码

选一下Open和Server

SELECT CustomerNo,Class FROM dbo.Customers
WHERE CustomerNo IN ('ATM002','QTM104','ATM004')
ORDER BY 2 DESC;

澳门微尼斯人手机版 13

聚拢函数AVG,COUNT,MAX,MIN,SUMD的选取

离线包:

去除有些列的值能够将它设置为NULL

澳门微尼斯人手机版 7

SELECT Created from dbo.Inspections
WHERE DATEPART(YY,Created)=2018;

安装程序无法与下载服务器联系。请提供 Microsoft
机器学习服务器安装文件的岗位,然后单击“下一步”。可从以下职责下载安装文件
:

ALTER TABLE Orders
ALTER COLUMN cust_id NCHAR(10);--两个表数据类型不同设置外键会报错,因此先更改外键字段的数据类型

ALTER TABLE Orders
ADD CONSTRAINT FK_ord--将Orders.cust_id用CONSTRAINT关键字设置唯一约束
FOREIGN KEY(cust_id)
REFERENCES Customers(cust_id)
GO

澳门微尼斯人手机版 15

文本管理函数的利用RT劲客IM和LT本田UR-VIM

开辟你会意识也下载不了,必须把https改成http(估计网址的SSL有一点难题卡塔尔国

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