Skip to main content

PATINDEX FUNCTION IN SQL SERVER

Returns the starting position of first occurrence of pattern in a specified expression.

Syntax:

Select Patindex(pattern char,expression char) returns int

Note:

  • It returns the integer value.
  • It returns the zero (0) when you are specified position is not matched in the expression.


Here is the simple string with postions for using entire examples in the Patindex Function.

1 2 3 4 5 6 7 8 9 10 11 12

L E A D F I R S T S Q L


Example-1:
SELECT PATINDEX('%a%','LEADFIRSTSQL') [PATINDEX_POSITION]







Example-2:
SELECT PATINDEX('%S%','LEADFIRSTSQL') [PATINDEX_POSITION]






Example-3:
SELECT PATINDEX('%_R_%','LEADFIRSTSQL') [PATINDEX_POSITION]







Example-4:
SELECT PATINDEX('%[abcde]%','LEADFIRSTSQL') [PATINDEX_POSITION]






Here is the example any of the character postion starting in the expression. It would match either a,b,c,d,e in the expression.

Example-5:
SELECT PATINDEX('%[7]%','LEADFIRSTSQL') [PATINDEX_POSITION]






Here Position is the Zero ,because of the 7 numberic value not exists the specified expression. 


Example-6:

SELECT PATINDEX('%[^A-Z]%','LEADFIRSTSQL1') [PATINDEX_POSITION]





 Here not match any character in [A-Z] regular expression . 
Labels:

Comments

Post a Comment

Popular posts from this blog

How to Use Merge Statement Using XML Data

We now that merge statement in SQL SERVER. With Merge statement we can merge the data from Source table into Target table. In the Last article we have already seen about Merge Statement .   These articles we will work around merge statement over xml data type. We know that xml data type SQL SERVER. XML Data type is used to storing xml data used Bulk Insert Data into SQL Tables. Example: --Create Student Table if object_id ( 'Student' ) is null create table Student ( id int identity ( 1 , 1 ) , Name varchar ( 20 ), Marks int ) Declare Xml Data Type and Assign Some Xml Data. Declare @Data xml set @Data = '<Root> <Student> <Name>Rakesh</Name> <Marks>80</Marks> </Student> <Student> <Name>Mahesh</Name> <Marks>90</Marks> </Student> <Student> <Name>Gowtham</Name...
Post a Comment
Read more

Coalesce function

Coalesce function returns the first non-null value among the arguments. Syntax: Coalesce (expression [,..n]) Here is example using Coalesce function Example 1 DECLARE @Str1 varchar ( 10 ), @str2 varchar ( 20 ), @Str3 varchar ( 20 ) SET @Str2 = 'Sql' , @Str3 = 'Server' SELECT COALESCE ( @Str1 , @str2 , @Str3 ) As [Coalesce] In above example @Str2 value is ‘Sql’ , @str3 value is ‘Server’  and @str1 values is Null because it not assigned any value . Output: It return’s “Sql” because Coalesce function return’s first non null value. Example 2: Coalesce in select statement. IF OBJECT_ID ( 'Employee' , 'U' ) IS NOT NULL DROP TABLE Employee CREATE TABLE Employee (   ID INT IDENTITY ( 1 , 1 ) PRIMARY KEY ,   NAME VARCHAR ( 20 ),   SALARY INT ) INSERT INTO Employee   ( NAME , SALARY ) VALUES ( 'Rakesh' , 5000 ),(NULL, 6000 ),( 'Naresh...
1 comment
Read more