SQL Server uses the following precedence order for data types:
Be careful while you define a DATA TYPE in sql. a little knowledge
can make your query bit fast and optimized
- user-defined data types (highest)
- sql_variant
- xml
- datetimeoffset
- datetime2
- datetime
- smalldatetime
- date
- time
- float
- real
- decimal
- money
- smallmoney
- bigint
- int
- smallint
- tinyint
- bit
- ntext
- text
- image
- timestamp
- uniqueidentifier
- nvarchar (including nvarchar(max) )
- nchar
- varchar (including varchar(max) )
- char
- varbinary (including varbinary(max) )
- binary (lowest)
