Jun 29, 2009 · For the Decimal or Numeric data types, SQL Server considers each specific combination of precision and scale as a different data type. DECIMAL(2,2) and DECIMAL(2,4) are different data types. This means that 11.22 and 11.2222 are different types though this is not the case for float. For FLOAT(6) 11.22 and 11.2222 are same data types.

Dec 17, 2014 · For SQL Server 2012 and above: If you place the query into a string then you can get the result set data types like so: DECLARE @query nvarchar(MAX) = 'select 12.1 / 10.1 AS [Column1]'; EXEC sys.sp_describe_first_result_set @query, NULL, 0; There is also a function version of this, which would be called similarly:

Apr 22, 2012 · The question is: choosing smaller data types for example like smallint over int will improve performance or it will affect it? Space is not quite a problem, after some quick calculations, the database will not exceed 200mb, and there will not be tables with more than 100.000 rows (average will be around 5.000).

I have this SQL Server 2012 query that I am running in SSMS: SELECT name, max_length, precision, scale, is_nullable FROM sys.columns WHERE object_id = OBJECT_ID('dbo.testtable') It is returning what I want: However, I would like to add the data type of the column in this query, so that it looks like what I see in the object explorer.

Jul 30, 2016 · TEXT, NTEXT, IMAGE: all those types are deprecated and scheduled to be removed in a future version of SQL Server - don't use those! CHAR vs. VARCHAR : CHAR is fixed-length, and it will be padding inputs with spaces to the defined length.

Feb 9, 2012 · ISJSON (Transact-SQL) tests whether a string contains valid JSON. JSON_VALUE (Transact-SQL) extracts a scalar value from a JSON string. JSON_QUERY (Transact-SQL) extracts an object or an array from a JSON string. JSON_MODIFY (Transact-SQL) changes a value in a JSON string. Please refer this SQL Server documentation about JSON data in SQL …

Nov 15, 2012 · This view's DATA_TYPE column contains the T-SQL/SQL Server type names, except that it doesn't include arguments for parameterised types, which can result in unexpected/unintentional column behaviour. For example, given three columns typed as nvarchar(max) , datetime2(3) , and decimal(10,5) then the output will be nvarchar , datetime2 , …

Jul 27, 2016 · Entity Framework maps SQL Server data types to conceptual model types ("Edm types"). The mapping can be found here: SqlClient for Entity FrameworkTypes; Edm types in turn translate to .NET types in a straightforward way (Boolean -> Boolean, Int32 -> Int32, Binary -> Byte array, etc.) and can be found in the reference code:

By default, the primary key on a SQL Server table is also used as the clustering key - but that doesn't need to be that way! I've personally seems massive performance gains over time when breaking up the previous GUID-based Primary Clustered Key into two separate key - the primary (logical) key on the GUID, and the clustering (ordering) key on ...

Jul 10, 2014 · The geometry type represents data in a Euclidean (flat) coordinate system. The geography type represents data in a round-earth coordinate system. We can find it easily in sql server 2008 and higher. create TABLE tab_spatial ( id int IDENTITY (1,1) primary key, zip nvarchar(20), city nvarchar(500), geo geography); More about spatial data type