varchar max

ObjectiveTo do daily inspection is an important step of database management and maintenance, and it is necessary to register each inspection date and result, and may need to make a inspection report.This series is designed to address some common

relational database design for developersDirectoryThe origin of a Codd RDBMS12 law--rdbmsDesign phase of two-relational databaseThree design principlesFour naming rulesDatabase design, a cornerstone of the success of a software project. Many

Transferred from: http://www.cnblogs.com/MeteorSeed/archive/2013/03/27/2880054.html-------------------------------------------------------------------------------------DirectoryThe origin of a Codd RDBMS12 law--rdbmsDesign phase of two-relational

Long time do not write things, this also has no technical content, put up to play, maybe someone use./** * CREATE procedure for Get all fields from JSON * * mark* * 2014-7-17 17:16:01* **/ Useqeo_insuranceGOIF object_id('Sp_getjsonfields') is not

At work we generally encounter the need to turn Heng lie into a vertical column, the following is a case of Heng lie:1. Build a tableCREATE TABLE [dbo].[Acrosschangeendlong]( [Id] [INT] IDENTITY(1,1) not NULL, [Name] [NVARCHAR]( -) not NULL,

Many people know about SQL injection, and they know that SQL parameterized queries can prevent SQL injection and why it is not known by many to prevent injection .This article is mainly about this question, perhaps you have seen this piece of

Select your databaseExecute the SQL that created the stored procedureCREATE proc [dbo]. [Spgeninsertsql] (@tablename nvarchar, @sqlwhere varchar (4000)) asbegindeclare @sql varchar (max) DECLARE @sqlValues varchar (max) set @sql = ' (' Set

write in front of the crap : Indexing is a commonplace issue, although it is often said, but as I have not used the index (very scary bar), I as a MS-BI implementation engineer incredibly useless index, speak naturally not emboldened. Prior to

/**--============================================= author:xftcteatedate:2013-10-11description: View the full field information for the table remark: Modifyhistory: Modified information such as field length and identity added **/--====================

Previously, when writing query statements habitually, the query condition was judged by "=". When writing a program today, the query suddenly reported an error: Data type text and varchar are incompatible in the equal to operator. Looking at the

LEN (string_expression) parameter: string to be calculatedReturnsCharacter Count, Which does not contain trailing spaces.If the expression data type is varchar (max), nvarchar (max), or varbinary (max), it is bigint; otherwise, it is int.Ntext

Last week, a dynamic query statement was used when I wrote the sqlserver2005 database stored procedure. However, because the statement is too long, the variable defined can be varchar (8000) at most. When the string is greater than 8000, the

Detailed description of the data type in SQL Server, SQL Server Preface In the previous articles, we have explained the index-related knowledge. In this section, we will continue to explain the following content, including brief content and in-depth

Identity () indicates that the value of this field increases by 1 every time a statement is inserted,SyntaxIDENTITY [(seed, increment)]ParametersSeedThe value (indicating the seed) used by the first row loaded to the table ).IncrementIncrement value,

This article describes in detail the performance and space occupied by varchar (n) and nvarchar (n) in SQL. For more information, see. This article describes in detail the performance and space occupied by varchar (n) and nvarchar (n) in SQL. For

This article explains the BLOB data types that SQLServer uses to access and store data, parses SQLServerBLOB data storage, access methods, and how to reduce the total cost of each byte stored in your SQLServerBLOB. BLOB data is a field with a large

Data dictionary generation tools (7): NVelocity code generator and generation tool nvelocity This system has not been updated for a long time, and people are also getting lazy. From now on, at least three articles are written every month. You are

GoIf object_id ('tempdb .. # 1') is not null drop table #1If object_id ('tempdb .. # 2') is not null drop table #2If object_id ('tempdb .. # 3') is not null drop table #3 Declare @ count Int = 5Select empid, empname, row_number () over (order by

Declare @ Items Varchar ( Max ) Declare @ Temp_item Varchar ( Max ) Set @ Items = ' 1, 2, 3, 4, 5, 6 ' Create Table # Temp_table (item Int ) While ( Len ( @ Items ) > 0 ) Begin If ( Charindex ( ' , ' ,@ Items ) =

Alter procedure zsp_indexesreorganizerebuildsql @ reorganizepercent Int = 10, @ rebuildpercent Int = 15, @ rows Int = 10000, @ online bit = 1, @ fillfactor Int = 85, @ indextype varchar (max) = '1, 2' -- clustering, non-clustering as -- exec