SQL Server

Declare @ dbname varchar (20)Set @ dbname = '56fc'Declare @ SQL nvarchar (500)Declare @ spid int -- The spid value is a unique integer assigned to the connection when the user connects.Set @ SQL = 'Clare getspid cursor for select spid from

1. Determine whether the "table" exists: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> If   Exists ( Select   *   From Sysobjects Where ID =   Object_id (N ' [DBO]

This article from: http://hi.baidu.com/yanzuoguang/blog/item/e94b2534d44b6b83a71e1255.html Thank you for writing this article! After reading the database recovery statements written by so many authors, none of them mentioned that the restoration

Problem description: When executing an SQL query statement, if the query condition contains Chinese characters, for example, select * from user where name = 'zhang san', no results can be found at this time, which is caused by garbled characters.

  When using tables in a database, we often encounter two ways to use tables: using temporary tables and table variables. In actual use, how can we flexibly use them in the stored procedure? Although they implement the same functions, in a stored

1. asp connection to access databaseCodeSave as a conn. asp file. Because each page uses this file, it is made into a separate file for other files to call.Set rs = server. Createobject ("ADODB. recordset ")DB = "db1.mdb"Set conn = server.

In sqlserver 2005, you may often find such problems during work or study. You have created a table in the database using an account, however, it is depressing to find that the table you created does not have the modification and query permissions.

all about transactions-Part 2-SQL Server Central while we are all looking forward to SQL Server 2005 and its "try... catch "error handling, we have to deal with what we have. if you want your transactions , ...

Introduction As the final mechanical storage component in the computer, the hard disk speed is several orders of magnitude slower than the memory and cache speed. But fortunately, the cost of the hard disk is far lower than that of the memory.

Introduction When the query optimizer parses T-SQL statements and selects the execution plan with the lowest consumption from the execution plan, the specific execution will be handed over to the execution engine). This article aims to classify

Introduction The merge keyword is a magic DML keyword. It is introduced in SQL Server 2008. It can combine insert, update, and delete into a simple sentence. Msdn's explanation of merge is very short and concise: "the target table is inserted,

BelowCodeCompatible with SQL Server 2000. Select C. [name] As 'column name ', Case When T. [name] = 'decimal' or T. [name] = 'numeric' Then upper (T. [name]) + '(' + Cast (C. [xprec] As varchar) + ',' + Cast (C. [XScale] As varchar) + ')' When

1. "SQL server does not exist or access is denied" This is the most complex. There are many causes of errors and there are many aspects to check. Generally, there are several possibilities: 1. incorrect spelling of the SQL server name or IP

Temporary tables are similar to permanent tables, but temporary tables are stored in tempdb,It is automatically deleted when it is no longer in use. Temporary tables can be local or global. They differ in terms of name, visibility, and

This article describes in detail how to use a connection object to connect to a database. For different. NET data providers, ADO. net uses different connection objects to connect to the database. These connection objects shield us from specific

--Date conversion parameters are worth adding to favorites Select Convert(Varchar,Getdate(),120 )2004-09-12 11:06:08 Select Replace ( Replace ( Replace ( Convert ( Varchar , Getdate (), 120 ), ' - ' , '' ), ' ' , ''

Data Type Type Description Bit Integer The BIT data type is an integer, and its value can only be 0, 1, or null. This data type is used to store data with only two possible values, such as yes, no, true, or fa lse, on,

This articleArticleThis is the fourth and last article in the series. This article requires the knowledge of the first three articles as the basis. The addresses of the first three articles are as follows: Transaction logs in SQL Server

Stored Procedures in transact-SQL are very similar to methods in Java. They can be called repeatedly. After a stored procedure is executed once, you can cache the statements in the memory and directly use the cached statements during the next

Yesterday I saw an SQL server Courseware on the internet, and I downloaded it to see what I was talking about. So I saw the following two PPT pages.   Because the content on the first PPT is not accurate (the log file does not contain the "log