Getting the previous or next row in SQL Server (T-SQL)
How can you get the next or the previous row in SQL Server?
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98-364: Database Fundamentals (Microsoft SQL Server): https://rebrand.ly/database-fundamentals
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You can use the LEAD (to get the next row) or LAG (to get the previous row). You also need an OVER which must include, at the very list, an ORDER BY.
You can also use a second argument to get the 2nd next row, like this:
SELECT object_id, [name]
, LEAD(name, 2) OVER (ORDER BY object_id) AS NextName
, LAG(name) OVER (ORDER BY object_id) AS PreviousName
FROM sys.objects
ORDER BY object_id
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Links to my website are:
70-461, 70-761 Querying Microsoft SQL Server with T-SQL: http://idodata.com/querying-microsoft...
98-364: Database Fundamentals (Microsoft SQL Server): http://idodata.com/database-fundament...
SQL Server Essential in an Hour: http://idodata.com/sql-server-essenti...
70-462 SQL Server Database Administration (DBA): http://idodata.com/sql-server-databas...
DP-300: Administering Relational Databases: http://idodata.com/dp-300-administeri...
Microsoft SQL Server Reporting Services (SSRS): http://idodata.com/microsoft-sql-serv...
SQL Server Integration Services (SSIS): http://idodata.com/sql-server-integra...
SQL Server Analysis Services (SSAS): http://idodata.com/sql-server-ssas-mu...
Microsoft Power Pivot (Excel) and SSAS (Tabular DAX model): https://rebrand.ly/microsoft-powerpiv...
1Z0-071 Oracle SQL Developer – certified associate: http://idodata.com/iz0-071-oracle-sql...
SQL for Microsoft Access: http://idodata.com/sql-for-microsoft-...
DP-900: Microsoft Azure Data Fundamentals: http://idodata.com/dp-900-microsoft-a...
