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SQL Server database management common SQL and T-SQL statements
1. view the database version
Select @ version
2. view the operating system parameters of the machine where the database is located
Exec master .. xp_msver
3. view
constraints for tables with frequent key value DML operations. The fillfactor parameter uses the default value.View the constraints of a data object in a databaseSp_helpconstraint @ objname
9. view all stored procedures and functions in the databaseUse @ database_nameSp_stored_proceduresView stored procedures and functionsSource code Sp_helptext '@ procedure_name'
View the Data Object Name containing a string @ StrSelect distinct object_name (ID) from syscomments where text like '% @ STR %'
Tags: PAC system SQL interface recover backup Sha off iceThis article mainly introduces the SQL Server2008 R2 Database Mirroring Implementation Manual (dual-machine) SQL Server2014 also applicable, the need for friends can refer to the followingFirst, configure the main standby machine 1, Server basic information The h
object that contains a string @str
SELECT DISTINCT object_name (ID) from syscomments where text like '% @str% '
Create an encrypted stored procedure or function with the with encryption parameter in front of AS
Decryption of encrypted stored procedures and functions can be done using the Sp_decrypt procedure
10. View information about users and processes in the database
sp_who
View information about act
functionsSp_helptext ' @procedure_name '
View the name of a data object that contains a string @strSELECT DISTINCT object_name (ID) from syscomments where text like '% @str% '
Create an encrypted stored procedure or function with the with encryption parameter in front of AS
Decryption of encrypted stored procedures and functions can be done using the Sp_decrypt procedure
10. View information about users and processes in the databasesp_whoView informa
SQL database Stored Procedure example parsing and SQL stored procedure example
What is a stored procedure:Stored procedures can be said to be a record set, it is a code block composed of some T-SQL statements, these T-SQL statement code implements some functionality like a m
Problems that arise:A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or could not be accessed. Verify that the instance name is correct, and that SQL Server is configured to allow remote connections. (provider: Named pipe provider, ERROR:40-Unable to open connection to SQL Server) (Micro
syscomments where text like '% @ STR %'
Create an encrypted stored procedure or function with the with encryption parameter before the
You can use sp_decrypt to decrypt encrypted stored procedures and functions.
10. View user and process information in the databaseSp_whoView information about active users and processes in the SQL Server databaseSp_who 'active'View the locks in the
transactions may be lost.
Implementing Database Mirroring
You can find basic information for implementing database mirroring in the "How to" of database mirroring topics in SQL SERVER books Online. In this part of the white Paper, we examine a special example of implementing
code of stored procedures and functions
Sp_helptext ''@ procedure_name''
View the Data Object Name containing a string @ str
Select distinct object_name (id) from syscomments where text like ''% @ str %''
Create an encrypted stored procedure or function WITH the with encryption parameter before the
You can use sp_decrypt to decrypt encrypted stored procedures and functions.
10. View user and process information in the
1. View the version of the database
SELECT @ @version
2. View the machine operating system parameters of the database
EXEC master.. xp_msver
3. View Database Startup Parameters
sp_configure
4. View Database Startup time
Select CONVERT (varchar, login_time,120) from master. sysprocesses where spid=1
To view the
In actual development, we often encounter data conversion needs. We can transfer the data in Excel to SQL, or import the data in the database table into Excel.CodeAs follows:Using System;Using System. Collections. Generic;Using System. ComponentModel;Using System. Data;Using System. Drawing;Using System. Linq;Using System. Text;Using System. Windows. Forms;Using GemBox. ExcelLite;Using System. Data. SqlClie
with SQL database password: use ADVENTUREWORKS2016CTP3; CREATE MASTER KEY encryption by PASSWORD='[email protected]'CREATE DATABASE SCOPED credential azuredbcred with IDENTITY='Sqladmin', SECRET ='[email protected]';--Place the local SQL Server 2016 archive target, point to
like '% @ str %'Create an encrypted stored procedure or function WITH the with encryption parameter before theYou can use sp_decrypt to decrypt encrypted stored procedures and functions.10. View user and process information in the databaseSp_whoView information about active users and processes in the SQL Server databaseSp_who 'active'View the locks in the SQL Se
''@ procedure_name''
View the data object name containing a string @ str
Select distinct object_name (id) from syscomments where text like ''% @ str %''
Create an encrypted stored procedure or function WITH the with encryption parameter before the
You can use sp_decrypt to decrypt encrypted stored procedures and functions.
10. View user and process information in the database
Sp_who
View information about
information. So it is highly recommended here not only to back up your own database frequently, but also to back up this database, although not as frequently as backing up your own database. Back up this database at least half a month or one months.There's a special database
10 threads operate at the same time, and frequent problems with inserting the same data occur. Although it is used when inserting data:Insert Inti tablename (Fields ...)Select @t1, @t2, @t3 from TableName where isn't exists (select ID from tablenamewhere [email protected],[email protected],[email protected])It was not valid at the time of high concurrency. This statement is also included in the stored procedure. (Before the line is also tried to determine whether there is no record to see if the
Tracking the SQL Server database server login process, found that the password calculation is very fragile, the SQL Server database Password Vulnerability embodies two aspects:
1. Password encryption algorithm for network landing
2. Password
Tags: style blog http io ar color OS using SPSource: Tools for bulk decrypting various objects in SQL Server database Dbforge SQL decryptorTools for bulk decrypting various objects in SQL Server database Dbforge SQL Decryptor2.1.1
witness endpoint, that must be specified to set the endpoint role.
Activation endpoints are not available by default, so you want to activate them.
Now let's take a look at creating endpoints using T-SQL statements
CREATE ENDPOINT dbmirroring
As TCP (listener_port=5022) can of course use other ports as long as they are not used
For database_mirroring (role=partner,encryption=supported) go
--Creat
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