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Remove first or last character from string or column in sql server

Introduction: In this article I am going to share how to remove first or last character/letter from string or table column in sql server.


Description: While working there may be requirement to remove first or last character from string. I have mentioned two ways to get this done: Using Sql inbuilt LEFT and RIGHT or SUBSTRING functions.

Implementation: Let’s write sql queries to demonstrate the concept. 

Remove first character from a string or column using SQL Right Function

Example 1:  Remove first character from a string
DECLARE @str VARCHAR(50)='Computer'
SELECT RIGHT(@str, LEN(@str)-1) AS Result

Query result will be : 
Result
omputer

Example 2: Remove first character from table column. Let’s create a temporary table and insert some data into it.
CREATE TABLE #tbItem
(
                ItemId  INT IDENTITY(1,1) NOT NULL,
                ItemName          VARCHAR(100),
                ItemPrice   DECIMAL(10,2) 
)

INSERT INTO #tbItem values('Soap',24.00),('Tooth Paste', 85.50), ('Hair Oil', 260.00),('Door Mat',300.00)

Now the query to remove first character of all the items present in the table will be as:
SELECT RIGHT(ItemName, LEN(ItemName)-1) AS ItemName,ItemPrice FROM #tbItem

DROP table #tbItem

Query result will be : 
ItemName
ItemPrice
oap
24.00
ooth Paste
85.50
air Oil
260.00
oor Mat
300.00

Remove first character from a string or column using Substring Function

Example 1:  Remove first character from a string
DECLARE @str VARCHAR(50)='Computer'
SELECT SUBSTRING(@str, 2, LEN(@str)-1) AS Result

Query result will be : 
Result
omputer
  
Example 2: Remove first character from table column.
CREATE TABLE #tbItem
(
                ItemId  INT IDENTITY(1,1) NOT NULL,
                ItemName          VARCHAR(100),
                ItemPrice   DECIMAL(10,2) 
)

INSERT INTO #tbItem values('Soap',24.00),('Tooth Paste', 85.50), ('Hair Oil', 260.00),('Door Mat',300.00)

SELECT SUBSTRING(ItemName, 2, LEN(ItemName)-1) AS ItemName,ItemPrice FROM #tbItem

DROP table #tbItem

Query result will be : 
ItemName
ItemPrice
oap
24.00
ooth Paste
85.50
air Oil
260.00
oor Mat
300.00

Remove last character from a string or column using SQL Left Function

Example 1:  Remove last character from a string
DECLARE @str VARCHAR(50)='Computer'
SELECT LEFT(@str, LEN(@str)-1) AS Result

Query result will be : 
Result
Compute

Example 2: Remove last character from table column
CREATE TABLE #tbItem
(
                ItemId  INT IDENTITY(1,1) NOT NULL,
                ItemName          VARCHAR(100),
                ItemPrice   DECIMAL(10,2) 
)

INSERT INTO #tbItem values('Soap',24.00),('Tooth Paste', 85.50), ('Hair Oil', 260.00),('Door Mat',300.00)

SELECT LEFT(ItemName, LEN(ItemName)-1) AS ItemName,ItemPrice FROM #tbItem

DROP table #tbItem

Query result will be : 
ItemName
ItemPrice
Soa
24.00
Tooth Past
85.50
Hair Oi
260.00
Door Ma
300.00

Remove last character from a string or column using Substring Function

Example 1:  Remove last character from a string
DECLARE @str VARCHAR(50)='Computer'
SELECT SUBSTRING(@str, 1, LEN(@str)-1) AS Result

Query result will be : 
Result
Compute

Example 2: Remove last character from table column
CREATE TABLE #tbItem
(
                ItemId  INT IDENTITY(1,1) NOT NULL,
                ItemName          VARCHAR(100),
                ItemPrice   DECIMAL(10,2) 
)

INSERT INTO #tbItem values('Soap',24.00),('Tooth Paste', 85.50), ('Hair Oil', 260.00),('Door Mat',300.00)

SELECT SUBSTRING(ItemName, 1, LEN(ItemName)-1) AS ItemName,ItemPrice FROM #tbItem

DROP table #tbItem

Query result will be : 
ItemName
ItemPrice
Soa
24.00
Tooth Past
85.50
Hair Oi
260.00
Door Ma
300.00
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