Introduce some new features of Microsoft SQL server 2016 which I found very useful

1. SQL Server 2016 –
Some New Features
@anniexu1990

2. Agenda
• IF EXISTS
• Text Split
• TemporalTables
• Columnstore indexes

3. IF EXISTS
--in versions before 2016
IF OBJECT_ID('[dbo].[V_319AdHocObjects]') IS NOT NULL
BEGIN
DROPVIEW [dbo].[V_319AdHocObjects];
END;
GO
CREATEVIEW [dbo].[V_319AdHocObjects]
AS
SELECT name AS object_name,
SCHEMA_NAME(schema_id) AS schema_name,
x.type_desc
FROM sys.objects x
LEFT JOIN sys.dm_exec_procedure_statsAS d ON
OBJECT_NAME(d.object_id, d.database_id) = name
WHERE SCHEMA_NAME(schema_id) <> 'sys';
--in versions 2016
DROPVIEW IF EXISTS [dbo].[V_319AdHocObjects];
GO
CREATEVIEW [dbo].[V_319AdHocObjects]
AS
SELECT name AS object_name,
SCHEMA_NAME(schema_id) AS schema_name,
x.type_desc
FROM sys.objects x
LEFT JOIN sys.dm_exec_procedure_statsAS d ON
OBJECT_NAME(d.object_id, d.database_id) = name
WHERE SCHEMA_NAME(schema_id) <> 'sys';

4. TEXT Split
SELECT [ID],
[REPORTING_SEGMENT]
FROM [Ad_Hoc].[dbo].[Service_Requests];
-- use 2016 new scirpt string_split to get number of IDs per reporting_Setment
SELECT value AS reporting_seg,
COUNT([ID])AS countofrequests
FROM [Ad_Hoc].[dbo].[Service_Requests]
CROSS APPLY string_split([REPORTING_SEGMENT], ',')
GROUP BY value;

5. TemporalTables
USE [Ad_Hoc]
GO
CREATETABLE [dbo].[DataAccuracy_GPM_Temporal](
[ID] int Identity(1,1) Primary Key,
[DataType] [varchar](20) NULL,
[System Name] [varchar](20) NULL,
[Date] [date] NULL,
[Model Field] [nvarchar](255) NULL,
[SourceValue] [money] NULL,
[GPTValue] [money] NULL,
[ModelValue] [decimal](14, 2) NULL
,SysStartTime datetime2GENERATEDALWAYS AS ROW
START HIDDEN NOT NULL
,SysEndTime datetime2GENERATEDALWAYS AS ROW
END HIDDEN NOT NULL
,PERIOD FOR SYSTEM_TIME (SysStartTime,SysEndTime))
WITH (SYSTEM_VERSIONING = ON
(HISTORY_TABLE=dbo.DataAccuracy_GPM_History));
Select [ID]
,[DataType]
,[System Name]
,[Date]
,[Model Field]
,[SourceValue]
,[GPTValue]
,[ModelValue]
,[SysStartTime]
,[SysEndTime]
--ChangeTimezone
--,convert(smalldatetime,[SysStartTime]ATTIME ZONE
'UTC'ATTIME ZONE 'Eastern StandardTime') as
'SystemStartTimeEST'
--,Case when [SysEndTime] = '9999-12-31
23:59:59.9999999' then [SysEndTime]ATTIME ZONE 'UTC'
--ELSE convert(smalldatetime, [SysEndTime]ATTIME
ZONE 'UTC'ATTIME ZONE 'Eastern StandardTime') end as
'SystemEndTimeEST'
from [dbo].[DataAccuracy_GPM_Temporal]
-- For SYSTEM_TIME FROM '2017-06-05 19:12:45.8094962'
to '2017-06-05 19:18:45.8094962'
-- For SYSTEM_TIME CONTAINED IN ( '2017-06-05
19:12:45.8094962', '2017-06-05 19:18:45.8094962')

6. Columnstore Indexes
--create normal rowstore index
CREATECLUSTERED INDEX [ClusteredIndex-RequestID]ON
[dbo].[Service_Requests_NormalIndex];
GO
--result normal index remember to show plan
SET STATISTICSTIME ON
SELECT [REQ_TYPE]
,count([ID])
FROM [Ad_Hoc].[dbo].[Service_Requests_NormalIndex]
group by [REQ_TYPE];
SET STATISTICSTIME OFF
go
-- create columnstore index
CREATECLUSTERED COLUMNSTORE INDEX [SR_ColumnStoreIndex]
ON Service_Requests_ColumnStoreIndex;
GO
--result
SET STATISTICSTIME ON
SELECT [REQ_TYPE]
,count([ID])
FROM [Ad_Hoc].[dbo].[Service_Requests_ColumnStoreIndex]
group by [REQ_TYPE];
SET STATISTICSTIME OFF
go