SQL Server

To make the database more capable of resisting attacks, you must take several steps. Some measures are only part of good server management, such as having the latest patches for SQL Server, and others include in-use user supervision. The following

1. String Functions Length and Analysis Datalength (char_expr) returns the number of characters in the string, but does not contain spaces Substring (expression, start, length ). Right (char_expr, int_expr) returns int_expr characters to the

SQL Server sorting rules are usually not used many times, and many beginners may be unfamiliar, but some A common error occurs when you query a database that is connected to multiple tables in different databases. If the default Character Set of the

Environment: Developed IDE: JBuilderX　　 Databases used: MS SQL Server 2000　　 Database Driver used: JSQL Driver (JDBC 3.0) Note: 1. In the configuration file, hibernate explicitly states "Microsoft Driver (not recommended !)", Therefore, JSQL Driver

Create a table: Create table [TestTable] ([ID] [int] IDENTITY (1, 1) not null,[FirstName] [nvarchar] (100) COLLATE Chinese_PRC_CI_AS NULL,[LastName] [nvarchar] (100) COLLATE Chinese_PRC_CI_AS NULL,[Country] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS

For example:Select * from table1 where name = ''zhangsan'' and tID> 10000And execution:Select * from table1 where tID> 10000 and name = ''zhangsan''Some people do not know whether the execution efficiency of the preceding two statements is the same,

Copy codeThe Code is as follows:Create view dbo. vw_db_dictionaryASSelect top 100 PERCENT dbo. sysobjects. name AS table_name,Dbo. sysproperties. [value] AS table_desc, dbo. syscolumns. name AS field,Properties. [value] AS field_desc, dbo. policypes.

Error 21002: [SQL-dmo] the user *** has an error.This error occurs when MSSQL backup is transplanted to another server for restoration.The main reason is that the original user information is retained during Backup recovery, resulting in isolated

Today, we use the time Like '2017-06-2008 'statement to query all the data of the day. A statement error is prompted. After checking, we found that the fuzzy query can only be used for fields of the String type.I also consulted some materials. There

Copy codeThe Code is as follows:Create PROCEDURE sp_decrypt (@ objectName varchar (50 ))ASBeginBegin tranDeclare @ objectname1 varchar (100), @ orgvarbin varbinary (8000)Declare @ sql1 nvarchar (4000), @ sql2 nvarchar (4000), @ sql3 nvarchar (4000),

You can set the AccessCount field to accumulate access from the same IP address in a specific time range as required.Copy codeThe Code is as follows:Create table Counter(CounterID int identity (1, 1) not null,IP varchar (20 ),AccessDateTime datetime,

Copy codeThe Code is as follows:-------------------------------------- Purpose: Paging stored procedures (efficient for tables with primary keys)-- Note:------------------------------------Alter procedure [UP_GetRecordByPage]@ TblName varchar (255),

I installed SQL server before and deleted it later. Now, "a previously installed program has created a suspended file on the installation computer. You must restart the computer before running the installer. Unable to proceed.Steps:1) Add/delete

Copy codeThe Code is as follows:-- Create database dbTempUse dbTempCreate table test(Pid int identity (1, 1) not null primary key,Years datetime,IsFirstSixMonths int default (0), -- 0 indicates first half 1 indicates second half --TotalCome

At that moment, my heartbeat reached my blind eye.Run the Account creation command. OK!Remote Login, enter the account, password, OK! Finally, I went in again!*I suddenly found that the database server could not be logged on.The system prompts that

Syntax SET IDENTITY_INSERT [database. [owner.] {table} {ON | OFF}Parameters Database is the name of the database where the specified table resides.OwnerIs the name of the table owner.TableIs the name of the table containing the ID column.For example,

If you carefully track the login process of the SQL Server database Server, you will find that password computing is actually very fragile. The weak password of the SQL Server database reflects two aspects:1. Password Encryption Algorithm for

In the current work, we need to solve the problem of copying the entire SqlServer database. The copied content includes the database outline, stored procedures in the database, functions, table structure, primary-foreign key relationships, and all

Copy codeThe Code is as follows:Select *FROM table1Where (id in (, 2 ))Copy codeThe Code is as follows:Select *FROM table1Where (id in (, 2) if all the conditions after In are numbers, the MSSQL sorting should beCopy codeThe Code is as

When querying a database, we sometimes need to find data records in rows within a specified range in the data table. For example, we need to find the 10 data records between 10th rows and 20th rows in the data table, so how can we implement it?The