sql server fuzzy string comparison

. they are object-oriented database interfaces and are based on classes that can be implemented on ODBC. But in these interfaces, we do not see special features that allow us to choose them instead of ODBC, especially if the ODBC driver has established a better market. They add an ornament to ODBC at best.Database link String DaquanSQL Server SQL Native

SQL native client ODBC driverStandard secure connectionDriver = {SQL native client}; server = myserveraddress; database = mydatabase; uid = myusername; Pwd = mypassword;Are you using SQL Server 2005 Express? Use the connection expression "host name \ sqlexpress" in the "

pronunciation.Soundex () is used to calculate the pronounced characteristics of a string, which is a four-character string, the first character of the feature is always the first character in the initial string, and then a three-digit numeric value.Select Sname, Soundex (sname) from studentThe result is:The meaning of the pronounced eigenvalues is very complex,

. NET SQL Server Connection string syntaxThe connectivity of the database has evolved into a standard aspect of application development. The database connection string is now a standard requirement for each project. I found myself in order to find the syntax that I need, I often have to copy the connection

By default, SQL Server is case insensitive. For example, userName = 'jesse 'and userName = 'jesse' have the same results. When verifying the password, you may need to be case sensitive to the string. You need to perform some processing to introduce two methods: Method I: Convert to binary before comparison, because th

("Adodb.connection");Third, the connection string (all connection strings are case insensitive, and the keys and values are not distinguished)：Provider=sqloledb.1//The key is used to indicate the database type that provides the database service, and the value is not the same for different databases. Other types please refer to: http://www.w3school.com.cn/ado/prop_conn_provider.asp Integrated security/trusted=true[yes,no,false,sspi]//when the key is y

, insert string)In a string, delete the character of the specified length and insert a new string at that location;ExampleSELECT STUFF (' ABCDEFG ', 2, 3, ' small movers ')Return: a small porter EFG7. Replace (Specify string, string to be replaced,

Tags: SQL Server Multi-table search stringSQL Server Multi-table search stringWe described a number of SQL Server articles earlier, today we mainly introduce the SQL Server under the co

: DATALENGTH (expression) return value: If the expression data type is varchar (max), nvarchar (max), or varbinary (max) data type, the bigint is returned, otherwise int is returned. Example: Select Datalength (' I am a pawn ') --Output of the ten Select Len (' I am a soldier ') --Output 5 Select datalength (' ABCDE ') --Output 5 Select Len (' ABCDE ') --Output 5 　　22, SOUNDEX Returns a four-character code (SOUNDEX) that evaluates the similarity of two strings. Select SOUNDEX (' ABCD

) --data delimiter) RETURNS Tableasreturn (SELECT col=cast (SUBSTRING (@s,id,charindex (@split, @[email protected],id)-id) asvarchar -) ) from Tb_splitstr WHERE ID'a') and CHARINDEX (@split, @split[email Protected],id] =ID) GO--Method 4: Loop string splits the Create FUNCTION [dbo]. [Fun_splitstr] (@originalStr VARCHAR (8000), --the string to split @split varchar ( -) --delimited symbols) RETURNS @temp

. Resetting the connection string will reconfigure the values of all connection strings, including passwords. The default value is pseudo. Pooling (pool): Determines whether connection pooling is used. If the value is true, the connection is obtained from the appropriate connection pool, or, if necessary, the connection is created and then added to the appropriate connection pool. The default value is true. User ID (User ID): The name of the account