How LAG compares to other techniques
LAG pulls a column from another row without a self-join. In this article, Kathi Kellenberger shows how LAG compares to other techniques
2021-09-24
databases
SQL Server identity column
The SQL Server identity column is used to populate a column with incrementing numbers on insert. In this article, Greg Larsen explains how it works.
2021-09-13
Oracle sequences – 12c features including “identity”
Oracle added several enhancements to the sequence object in version 12c, including an “identity” column feature. Jonathan Lewis explains how to work with these new features.
2021-09-10
Testing SQL Server Databases Using SQL Test
During database development, as well as writing SQL, you must also write the tests that prove your SQL code meets all the requirements. The article will help you get started with database testing for your SQL Server databases, by creating and running unit tests against them, as well as static code analysis tests.
2021-08-20
SQL Compilations/sec is not what you think it is
SQL Server perfmon counters provide a wealth of information about performance. In this article, Fabiano Amorim shows how current wisdom about one counter, SQL Compilations/sec, can sometimes be misleading.
2021-08-20
Collecting SQL Server performance monitor data
SQL Server provides information for troubleshooting performance. Ed Pollack demonstrates collecting SQL Server performance monitor data.
2021-08-11
How to enable SQL Server trace flags
DBAs can control many aspects of SQL Server’s behavior with trace flags. In this article, Robert Sheldon explains how to enable SQL Server trace flags.
2021-07-30
Managing SQL Server transaction log size
The SQL Server transaction log must be managed to keep a database running and performing well. In this article, Greg Larsen explains how to manage the transaction log size.
2021-07-23
A Quick Diff Checker for SQL Server Databases
Compare the schemas of two SQL Server databases using SQL Compare command line then quickly produce a diff report showing you immediately which tables, views and functions have changed.
2021-07-02
SQL Server performance tuning: Nine best practices
SQL Server performance tuning can seem overwhelming when you don’t know where to start. In this article Robert Sheldon explains 9 best practices for performance tuning.
2021-06-16
Blogs
A DevOps Workshop Tomorrow in Atlanta
By Steve Jones
Tomorrow is the Redgate DevOps Day in Atlanta. You can still sign up, so...
Stop Wasting Time Rebuilding Indexes Every Night
By Kevin3NF
Too many IT teams run index rebuild jobs on autopilot. Every night. Every index....
SQL Data Type Conversions: Your Key to Clean Data & Sharp Queries
If you're a data analyst juggling varied datasets, mastering SQL data type conversions isn't...
Forums
Question on SQL Query with NOT condition
I have a record, in those the three columns where firstname / last name...
Execution Plan Operators
Comments posted to this topic are about the item Execution Plan Operators
Merge spans with Dates Logic
--for a given member if the startdate and endate is continous we need to...
Question of the Day
Execution Plan Operators
When looking at an execution plan in SSMS, what types of operators are shown?
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