id n

Using T-SQL statement to realize the function of database backup and Restoration It embodies four knowledge points in SQL Server: 1. Obtain the default directory on the SQL Server 2. Use of backup SQL statements 3. Restore the use of SQL statements,

  Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> -- Method 1 If Exists ( Select * From DBO. sysobjects Where ID = Object_id (N ' [DBO].

SQL Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> -- ---------------------------------------------------------- -- Determine whether the database exists If   Exists ( Select   *

If exists (select * From DBO. sysobjects where id = object_id (n' [DBO]. [checkandratify_stat] ') and objectproperty (ID, n' isprocedure') = 1)Drop procedure [DBO]. [checkandratify_stat]Go Set quoted_identifier onGoSet ansi_nulls onGo Create

If your program is just a single-line, single-process program, you usually only need to pay attention to the correctness of the program, your program can normally provide the desired functions, but when your program is a multi-line program and

-- 1. sqlserver database dictionary -- table structure. SQL Select Top 100 percent -- A. ID, Case when a. colorder = 1 then D. Name else ''end as table name, Case when a. colorder = 1 then isnull (F. Value, '') else'' end as table description, A.

Database Backup/recovery using SQL It embodies four knowledge points in SQL Server: 1. Obtain the default directory on the SQL Server 2. Use of backup SQL statements 3. Restore the use of SQL statements, and disable the processing of other user

1. Add a field Copy codeThe Code is as follows: if not exists (SELECT * from syscolumns where id = OBJECT_ID ('querydatasource ') and name = 'iscrosstable ') BEGIN Alter table QueryDataSource ADD IsCrossTable bit default (0) -- insert Field END 2

The following are common SQL statements used by SQL Server and access to operate database structures. Create a table:Create Table [Table name]([Automatic number field] int identity (1, 1) primary key,[Field 1] nvarchar (50) Default \ 'default

C # Connecting to SQL Server databases For the different. NET data provider, ADO. NET uses different connection objects to connect to the database. These connection objects mask the specific implementation details, and provide a unified

Prior to the thread understanding is not deep, so the thread mechanism of QT is not clear, write an article today to summarize, if there are errors, welcome to point out.First you need to understand what the thread is, the thread in the code is

Using T-SQL statement to realize the function of database backup and restore Embodies four of the knowledge points in SQL Server: 1. Get the default directory on the SQL Server server 2. Use of Backup SQL statements 3. Restore the use of SQL

There are too many files in the machine, so it needs to be sorted out. This article to organize the picture file for example, give us a little thought Code's operating environment: Iis5.0+sql server2000 Database scripts: if exists (SELECT * from

/*Navicat MySQL Data TransferSource server:206 Docker MySQL 13306Source Server version:50720Source host:192.168.7.206:13306Source Database:kafkamonitorTarget Server Type:mysqlTarget Server version:50720File encoding:65001Date:2018-05-05

In the LINQ to SQL Advanced Series (i), we talked about two basic relationships 1:m and 1:1 in a database. And in the real world, there is a m:m relationship. For example, a teacher can have more than one student, and a student can have multiple

--whether the library existsif exists (select * from Master.. sysdatabases where Name=n ')print ' exists 'Elseprint ' NOT EXISTS '--Determine if the name of the table to be created exists, delete itif exists (SELECT * from dbo.sysobjects WHERE id =

--Delete primary keyALTER TABLE name drop constraint primary Key name--Add primary keyALTER TABLE name add constraint primary Key name primary key (field name 1, field Name 2 ...)--Add a primary key for a nonclustered indexALTER TABLE name add

SQL Server System table sysobjects describes and usesAll information about the SQL Server database is stored in its system table. I wonder if you have spent more time checking the system tables because you are always busy with user forms. However,

--Delete primary keyALTER TABLE name drop constraint primary Key name--Add primary keyALTER TABLE name add constraint primary Key name primary key (field name 1, field Name 2 ...)--Add a primary key for a nonclustered indexALTER TABLE name add

Below you introduce SQL under the use of a variety of resources to determine the existence of the code, the need for friends can refer to, I hope you learn SQL functions and databases can be helpful.Whether the library existsif exists (select * from