sql server fuzzy string comparison

First step: Create a Wizard FileCreate a TXT file on the desktop and change the file suffix to ". udl". Step Two: Select the Provider tab pageDouble-click the newly created. udl file, enter the Provider tab, and select Microsoft OLE DB Provider for SQL Server. Step three: Set up "Connect"After the second step, select the "Next" button and go to "Connect" tab, in "1. Select or enter the

Sometimes we use the bulk operation to split the string, but SQL Server does not have the Split function, so you have to implement it yourself.-- =============================================--Author:chenlong--Create date:2015-02-02--Description: Split string separated by commas, return table-- ========================

Tags: varchar nbsp rtti arch Color Take string span intercept string SQL ServerRight (field name, N)SQL intercepts the string from the right. n represents the number of bits intercepted from the right.SELECT Right ('123456'4) SELECT Left ('123456'4)------------------------

@next intDECLARE @seed intSet @str =ltrim (RTrim (@str))Set @start =1Set @next =1Set @seed =len (@split) Set @location =charindex (@split, @str)While @location BeginSet @[email Protected][email protected]Set @location =charindex (@split, @str, @start)Set @[email protected]+1EndIf @location =0 select @location =len (@str) +1There are two cases here: 1, the string does not exist in the delimiter symbol 2, there is a delimiter in the

The example in this article describes how SQL Server implements splitting and inserting specific strings. Share to everyone for your reference, specific as follows: --Loop execution Add action declare @idx as int while Len (@UserList) > 0 Begin Set @idx = Charindex (', ', @UserList); c5/>--only one piece of data if @idx = 0 and Len (@UserList) > 0 Begin Insert into bis_msgcenterinfo (id,msgid,useri

When I import some data to SQL Server today, a column is imported into the float type, and what I actually need is the varchar type, so type conversion is required, I encountered some problems during conversion, so I wrote this blog record. SQL Server has two numeric types: bit, tinyint, smallint, int, bigint, smallmon

I. SQL Server Date and Time FunctionsDate and time functions in SQL Server1. Current System Date and TimeSelect getdate ()2. dateadd returns a new datetime value based on a period of time added to the specified date.For example, add 2 days to the dateSelect dateadd (day, 2, '2017-10-15 ') -- Return: 2004 00:00:00. 0003. datediff returns the number of date and tim

Sql-function Create function Database output results are separated by commas, and in development there are also many arguments passed in the form of comma-string arguments (not recommended when data is large). For example: Find the name "John, Li II" data in the database at this time to do this parameter processing as shown: The function code is as follows CREATE FUNCTION [dbo].[ FNSPLITSTR] (@s

Tags: http io ar os sp for on art logTransferred from: http://stackoverflow.com/questions/3077412/ What-is-the-difference-between-trusted-connection-and-integrated-security-in-a-c-----------------------------------------------In. Net, there are a class called SqlConnectionStringBuilder that's very useful for dealing with SQL Server Conne ction strings using Type-safe properties to build up parts of the

@dhhm = IsNull(@dhhm,"')+@mobilnumber+','--the IsNull method is used here to determine the value of the variable @dhhm If NULL is assigned to an empty string, so the string concatenation error is not caused.--If you do not want to use IsNull, in @dhhm, after defining the variable, you want to assign a value to the @dhhm to NULL, such as: set @dhhm = " Set @rcount = @rcount+1 FETCH NEX

+name from Car; The query here will display the code and name two varchar type Lian as a string concatenation.Similarly, if it is a column of two value types, it will follow the mathematical operationConvert (type, column name) type conversionCast (column name as type)Time-Date functionGETDATE () Gets the current timeYear (GETDATE ()) Gets the years in the current timeMonth (GETDATE ()) Gets the months in the current timeDAT (GETDATE ()) DayIsDate (ti

Label:SQL Server TSQL in the case of string concatenation, it is necessary to initialize the string, Set @errorMsg + = N ' table role has no key ' + '. ' If the @errormsg is not assigned an initial value, the Select @errorMgs will always get null; Declare @errorMsg nvarchar( -); Declare @tmpErrorMsg nvarchar( -); Declare @pkCount int; Declare @PKTable Table(Table

display different formats. We will use the GETDATE () function to get the current date/time: CONVERT(VARCHAR( +),GETDATE()) CONVERT(VARCHAR(Ten),GETDATE(), the) CONVERT(VARCHAR( One),GETDATE(),106) CONVERT(VARCHAR( -),GETDATE(),113) The results are similar: Dec in - One: $PM A- in- - in Dec , in Dec - -: -:46.635 The CONVERT () function converts one type of data to another data type. Convert(the data type to convert to, field name) Example: converting an int type FLAG1 to a varchar

1. Left returns the number of characters in the string that are specified in the beginning.SELECT left (' ABCDEFG ', 2);----AB2. Right returns the specified number of characters in the string starting from the left.SELECT Right (' ABCDEFG ', 2);----FG3.LEN return string lengthSELECT LEN (' ABCDEFG ');----7SELECT LEN (' ABCDEFG ');----8SELECT LEN (' a bcdefg ');--

= ' 01-2002-03 'SELECT @dt--Results: 2002-01-03 00:00:00.000--the date entered does not specify the century partSET @dt = ' 01-02-03 'SELECT @dt--Results: 2003-01-02 00:00:00.000GO--3./*--descriptionIf the date entered does not contain a date separator, SQL Server interprets the dateSetting for set DATEFORMAT is ignored.--*/--example, in the following code, the character date that does not contain the date

Before the--sqlserver 2012 version /* Handling NOT NULL characters/* DECLARE @t1 varchar (a) = ' a ' DECLARE @t2 varchar (+) = ' B ' DECLARE @t3 varchar (+) = ' C ' DECLARE @t4 varchar (+) = ' d ' DECLARE @N1 int = 2012 SELECT @t1 + @t2 + @t3 + @t4 +convert (varchar), @N1) as result Go /* Handle NULL characters/* DECLARE @t1 varchar (a) = ' a ' DECLARE @t2 varchar (+) = ' B ' DECLARE @t3 varchar (TEN) = null DECLARE @t4 varchar (+) = ' d ' DECLARE @N1 int = 2012 SELECT @t1 + @t2 +

server|sqlserver| string Known: Field a= ' F:\photo\Winter leaves.jpg 'Requirements: Segment intercept each character [field a cannot be text type, otherwise error]Workaround:++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ---intercept the first \ Left string of string aSelect Left (A,charindex ('/', A)

SQL Server String functions are listed in different categories for easy access and memory. I believe everyone has a deep programming Foundation in other aspects. Literally, everyone knows the meaning of these functions, I have not explained these functions too much. I will focus on some experiences. For more information, see books online. ASCII (character_exp

Examples of data are:To get the result of the target, get the same type of all names stitching together the string:SQL Server does not have a direct concatenation of the function of the string, the method mentioned below, just the daily development of their own personal use of some ideas, for reference only!Declare @tempTable Table ([Type]int,[Name]nvarchar(100 ))Create table variables, fields are values fo

SQL Server Date functionDefinition and UsageThe CONVERT () function is a general function that converts a date to a new data type.The CONVERT () function can display date/time data in different formats.GrammarCONVERT (data_type (length), Data_to_be_converted,style)data_type (length) Specifies the target data type (with optional lengths). The data_to_be_converted contains values that need to be converted. st