sql server split string

Label:C # Connect a SQL Server database connection string, we introduce a parameter (note: The parameters are separated by semicolons):"User Id=sa": The authenticated user name for the connection database is SA. He also has an alias "UID", so this sentence we can also write "Uid=sa"."Password=": The authentication password for the connection database is empty. Hi

Recently found when comparing strings in SQL Server if the end of the string is a space then SQL Server ignores those spaces and compares them directly to the usual string judgment logic in the program.Declare @a nvarchar( -);Set

:49.827Select CONVERT (varchar), GETDATE (), ():???? ?????? 1427 10:57:49:907amSelect CONVERT (varchar), GETDATE (), 131): 18/04/1427 10:57:49:920am2. SQL Server date and time functions1. Current system date, timeSelect GETDATE ()2. DateAdd returns a new datetime value based on adding a period of time to the specified dateExample: Add 2 days to the dateSelect DATEADD (day,2, ' 2004-10-15 ')--return: 2004-10

Label:MS SQL Server Database connection string detailedC # Connection string set timeout timeSqlconnection.connectiontimeout and Sqlcommand.commandtimeout and Sqlbulkcopy.bulkcopytimeout propertiesHttps://msdn.microsoft.com/zh-cn/library/8xx3tyca.aspx SQL

SQL Server (c) grouping type conversion functions insert multiple data String functionsMy own study notes, reproduced please indicate the source, thank you!---sauerkraut1.SQL Data grouping----Group by/having① has a student information sheet: STUID/STUNAME/STUAGE/STUGENDER/STUCLASSID;For each class ID and corresponding

Grammar REPLACE (' String_expression1 ', ' string_expression2 ', ' String_expression3 ') Parameter description ' String_expression1 ' The string expression to search for. String_expression1 can be either character data or binary data. ' String_expression2 ' The string expression to find. String_expression2 can be either character data or binary data. ' String_expression3 ' The

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

Create function sp_split ( @c nvarchar (4000), @splitchar nvarchar (1)) Returns @table table (Word nvarchar ( max)) Asbegin declare @temp nvarchar () set @[email Protected][email protected] at the far right, add a delimiter for the last to get the rightmost string while CharINDEX (@splitchar, @c) >0 begin/ * CharINDEX (@splitchar, @c) find the first position in the string where the

INSTR (C1,c2[,i[,j])function searches for a specified character in a string, returning the location of the specified character;"description" multibyte character (kanji, full-width, etc.), calculated as 1 characters"Parameters" C1 the string being searched forC2 the string you want to searchI Search start position, default is 1J-J-Occurrence position, default 1"Re

Tags: io ar on Data code as SQL Res harString functions are used to perform various operations on characters and binary strings, and most string functions can only be used for char, nchar, varchar, and nvarchar data types. String functions can be used in select or where statements.1. ASCII () functionThe ASCII (char_expression) function acts on the leftmost ASCII

Tags: string subscript create end Ace SYS from test result weight DECLARE @Str NVARCHAR( -)= '1_bb_cc_dd_aa_ee_yy_ww_hh_gg' --//1. Gets the number of times an underscore appears in a string SELECT LEN(@Str)- LEN(REPLACE(@Str,'_',"')) --//2. Get the subscript where the underline appears IF EXISTS(SELECT * fromSys.objectsWHERE object_id = object_id(N'[dbo]. [Indexnumofstr]') andTypeinch(N'FN'N'IF'N'TF'N'F