sql trim string

SQL string Substitution handler function Create function Dbo.regexreplace(@source varchar (5000),--Original string@regexp varchar (1000),--Regular expression@replace varchar (1000),--Replacement value@globalreplace bit = 0,--whether it is a global replacement@ignorecase bit = 0-is the size ignored?)Returns varchar (1000) ASBeginDECLARE @hr integerDECLARE @obj

Connecting SQL server2000 connection string in vs2005Sqlconnection conn = new sqlconnection (sqlconn. connstring );String sqltext = "select * from loginuser where (username = '" + name + "') and (" + "userpwd = '" + pwd + "')";Sqlcommand command = new sqlcommand (sqltext, conn );// Try//{Conn. open ();// Try

Tags: set item char string length SQL out first fetch stringRequirement: The contents of the middle part of the 2nd to 3rd comma need to be intercepted in the actual project Scheme: declare @str nvarchar (50);Set @str = ' 11,222,3333,44444 ';Select @str as ' string 'Select Len (@str) as ' character length 'Select Charindex (', ', @str, 1) as ' the index value of

If the settings.settings file is automatically generated in the class library after you add LINQ to SQL and the database server is connected, the App. Config file is used to store the connection string (figure I)If you want to modify the connection string, which one or all of them should be modified? After my research found that the simplest only need to modify d

Only SQL functions can be used in a SELECT statement to manipulate fields (linked SQL Server). Select field 1 from Table 1 where field 1. IndexOf ("cloud") = 1; The reason this statement is not correct is that the indexof () function is not a SQL function, and it can be changed to a SQL corresponding function. Left

-- Ms SQL server2k string splitting and merge processing code -- Code for string splittingCreate Function f_splitstr (@ S varchar (8000), -- string to be split@ Split varchar (10) -- Data Separator) Returns tableAs-- Select top 8000 id = identity (INT,) into DBO. tb_splitstr -- auxiliary table used by the

SQL string function Encyclopedia, including many such as go to the space function to take a substring function string comparison function string manipulation function data type conversion function Date functionAnd so on the operation has a detailed description ah.Go to the Space function1, LTrim () The

), GETDATE (), 24): 10:57:47SELECT CONVERT (varchar), GETDATE (), 25): 2006-05-16 10:57:47.250SELECT CONVERT (varchar), GETDATE (), (+): 2006 10:57amSELECT CONVERT (varchar), GETDATE (), 101): 05/16/2006SELECT CONVERT (varchar), GETDATE (), 102): 2006.05.16SELECT CONVERT (varchar), GETDATE (), 103): 16/05/2006SELECT CONVERT (varchar), GETDATE (), 104): 16.05.2006SELECT CONVERT (varchar), GETDATE (), 105): 16-05-2006SELECT CONVERT (varchar), GETDATE (), 106): 16 05 2006SELECT CONVERT (varchar), G

')--error returned 0 --2. Type conversions:--Data type conversion cast convert--cast writes the converted value + as + the type converted toSelect CAST (1.999 as int)Select CAST (1.56656 as varchar )Select CAST (1.3996646 as Decimal (18,2))Select cast (CAST (' 1.5656 ' as Decimal (18,2) as int)Select CAST (' 1.5656 ' as Decimal (18,2))The --convert parameter 1 is the type that needs to be converted, and parameter 2 is the value that needs to be convertedSelect CONVERT (int, ' a ')Select CONVERT

SQL string Split Split function Splits a string with the specified character. Idea: 1, first compute the index of the specified split character in the string, 2. Then split the string again. The SQL code is as follows: declar

Tags: oracle San method font. com span table Concat SelectSometimes, we need to concatenate the data obtained from different fields. Each database provides a way to achieve this: Mysql:concat () Oracle:concat (), | | SQL Server: + The syntax for CONCAT () is as follows: CONCAT (String 1, String 2, Stri