sybase patindex

The string lookup feature has recently been used frequently. Including 1. Full matching Find string 2. Fuzzy Lookup string Both the CHARINDEX and PATINDEX functions return the start position of the specified pattern. PATINDEX can use wildcard characters, and CHARINDEX is not available. Both of these functions have 2 parameters: 1 The pattern that you want to get its location. With

searched.CompareOptional. Indicates the value of the comparison type used to calculate the substring. For values, see the "Settings" section. If omitted, binary comparison is executed. The properties of the two functions are very similar. It is used to search for a character in another string. Patindex FunctionThe patindex function returns the starting position of a character or string in another string or

Like, charindex, patindex of sqlserver 1. Environment IntroductionTest Environment sql2005Million test data records 2. Prepare the environment2.1 create a tableCreate Table [DBO]. [depratments] ([Dep_id] [int] not null,[Dep_name] [varchar] (50) Collate chinese_prc_ci_as not null) On [primary]2.2 create dataCreate procedure ins_depratmentsAsDeclare @ n int;Declare @ title varchar (30 );Set @ n = 1;Set @ Title = '';BeginWhile @ nBegin-- Set @ Tit

If you have written a lotProgram, You may occasionally encounter whether to include a character or character string in a paragraph. In this articleArticleIn, I will discuss how to use the charindex and patindex functions to search for text columns and strings. I will show you how these two functions work and explain their differences. At the same time, some examples are provided. Through these examples, you can consider using these two functions to so

/* Usage of the patindex function. Prepared by: Hopewell, Date: 2006/08/26 */The usage of the patindex function.Syntax format: patindex ('% pattern %', expression)Returns the position where the pattern string appears for the first time in the expression. The start value starts from 1.If no value is found in expression, the pattern string returns 0, which is a val

Use of the SQL Server replace functionREPLACEReplaces all occurrences of the second given string expression in the first string expression with a third expression.GrammarREPLACE (' String_replace1 ', ' string_replace2 ', ' string_replace3 ')Parameters"' String_replace1 'The string expression to search for. String_replace1 can be either character data or binary data."' String_replace2 'The string expression to be found. String_replace2 can be either character data or binary data."' String_replace

server| detailed SQL Server charindex and patindex detailed If you have written many programs, you may occasionally encounter the need to determine whether a character or character string is included in a text, and in this article I will discuss using the CHARINDEX and PATINDEX functions to search for text columns and strings. I'll tell you how these two functions work, explaining their differences. At the

Similar to the CharIndex and IndexOf functions in C # in SQL Server CharIndex is the position of a Char, while PATINDEX can get the position of a string. For example:Code Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->DECLARE @ s VARCHAR (100) SET @ s = 'fileguid = ed47252c-2d34-42d7-9faf-e5c32de82a5f' Select patindex ('% FileGuid = %', @ s) The res

SQL Server like, CHARINDEX, patindex1, Environment Introduction test environment SQL2005 test data 200W 2, Environment preparation 2.1 tables CREATE TABLE [dbo]. [Depratments] ( [dep_id] [int] not null, [dep_name] [varchar] (a) COLLATE Chinese_ Prc_ci_as not NULL) on [primary]2.2 Creating data CREATE PROCEDURE ins_depratmentsas DECLARE @n int; DECLARE @title varchar (+); set @n =1; Set @ti Tle= ';begin while @n3) Patindex supports

Patindex Returns the starting position of a mode that appears for the first time in a specified expression. If this mode is not found in all valid text and character data types, zero is returned. Syntax Patindex ('% pattern %', expression) Parameters Pattern A string. Wildcards can be used, but must contain % characters before and after the pattern (except when the first and last characters are search

searched.CompareOptional. Indicates the value of the comparison type used to calculate the substring. For values, see the "Settings" section. If omitted, binary comparison is executed. The properties of the two functions are very similar. It is used to search for a character in another string. Patindex FunctionThe patindex function returns the starting position of a character or string in another string

. The string expression to search for.CompareOptions are available. Indicates the numeric value of the comparison type to use when calculating substrings. See the Settings section for values. If omitted, a binary comparison is performed.The nature of the two functions is as good as searching for whether a character appears in another string.PATINDEX functionThe PATINDEX function returns the starting position of a character or string in another string

ArticleDirectory Compare charindex and patindex Compare charindex and patindex Both the charindex and patindex functions return the starting position of the specified mode. Patindex can use wildcards, but charindex cannot. Both functions have two parameters: The mode in whic

I. test environment: 1. Database: SQL Server 20082. Test Table: 15000 records, char primary key, no other indexes3. Test Field: ntext type, maximum Data Length: 12000Ii. Test statement: 1. Select * from ProductTemp where ProductDesc like '% 192.168.70.236%'2. Select * from ProductTemp where charindex ('192. 168.70.236 ', ProductDesc)> 03. Select * from ProductTemp where patindex ('% 192.168.70.236%', ProductDesc)> 0Iii. Test results: 1. Efficiency Tes

I. test environment: 1. Database: SQL Server 2008 2. Test Table: 15000 records, char primary key, no other indexes 3. Test Field: ntext type, maximum Data Length: 12000 Ii. Test statement: 1. Select * From producttemp where productdesc like '% 192.168.70.236%' 2. Select * From producttemp where charindex ('192. 168.70.236 ', productdesc)> 0 3. Select * From producttemp where patindex ('% 192.168.70.236%', productdesc)> 0 Iii. Test result

I. test environment: 1. Database: SQL Server 2008 2. Test Table: 15000 records, char primary key, no other indexes 3. Test Field: ntext type, maximum Data Length: 12000 Ii. Test statement: 1. Select * From producttemp where productdesc like '% 192.168.70.236%' 2. Select * From producttemp where charindex ('192. 168.70.236 ', productdesc)> 0 3. Select * From producttemp where patindex ('% 192.168.70.236%', productdesc)> 0 Iii. Test results:

following:Select count (*) from northwind. DBO. MERsWhere charindex ('RD ', address)> 0 or charindex ('road', address)> 1 For example, in the search mode "wonderful ",TitlesTableNotesThe start position in a specific row of a column. Use pubs Select charindex ('Wonderful ', notes) From titles Where title_id = 'tc3218' For example, use the wildcard search mode "candies"CategoriesStart position of any row of the description column in the table: Use northwindgoselect categoryid,