Get precision and decimal value in SQL Server by using PARSENAME

In SQL server there are decimal and money data type to store precision and scale both together or say decimal values. Suppose we want to get precision and scale separately then how to get it.

There are many ways to do this but there is a function in SQL named PARSENAME which can be used to get our result, see this

Declare @price Decimal(10,2)
Set @price=12345678.90
Select PARSENAME(@price,2) AS [Precision], PARSENAME(@price,1) AS [Scale]

Precision      Scale
------------   -------
12345678       90 

Syntax: PARSENAME ( 'objectname' , objectpiece )

Actually it used to get four part of an object separated by dot,

  • object_piece 1: return last part of object
  • object_piece 2: return third part of object
  • object_piece 3: return second part of object
  • object_piece 4: return first part of object

Say we have a string "100.200.300.400" and want to separate them then

Declare @str varchar(100)
Set @str = '100.200.300.400'
Select PARSENAME(@str, 4) [First]
   , PARSENAME(@str, 3) [Second]
   , PARSENAME(@str, 2) [Third]
   , PARSENAME(@str, 1) [Fourth]

First  |   Second  |  Third  |  Fourth
100    |    200    |  300    |   400

PARSENAME function can be used in many situations, say you have an IP address and you want to separate them then it will be very handy, other cases may be to get object name, schema name and database name from complete database and object name say 'master.dbo.person' etc.

Myghty .Net developer
  • sql server
  • parsename
By Myghty On 26 Mar, 13  Viewed: 3,394

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