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Oct23

SQL SERVER – How to Identify InMemory Objects Can be Identified in SQL Server?

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
In-Memory OLTP
1 Comment
When SQL Server introduced InMemory OLTP functionality, it is a great addition to the database. I have seen people use this capability in limited capacity for specific use case scenarios. As a seasoned developer, it is difficult to know what are the consumers of memory. In a recent conversation, I…
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Oct22

SQL SERVER – Interesting Observations Using MONEY Datatype

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
SQL Datatype, SQL PASS
2 Comments
MONEY is one of the data types supported in SQL Server. There are some interesting information about this. Observation 1: Money datatype can accept up to four scale values. DECLARE @money money SET @money='$1,200.45679' SELECT @money which results to 1200.4567 Observation 2: If the scales value exceeds 4 digits, it is rounded to…
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Oct21

SQL SERVER – Database Size Limitation in SQL Express

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
SQL Server Express
10 Comments
I have a tendency to write a number of interview style questions and those are quite popular in this blog. Having said that, sometimes we get asked about tricky questions on a small variety which we might know some of the basics – but sometimes it makes us think twice.…
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Oct20

SQL SERVER – Log Shipping Restore Job Error: The file is too recent to apply to the secondary database

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
SQL Error Messages
13 Comments
If you are a DBA and handled Log-shipping as high availability solution, there are a number of common errors that come that you would over a period of time become pro on resolving. Here is one of the common error which you must have seen: Message 2015-10-13 21:09:05.13     *** Error:…
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Oct19

SQL SERVER – ColumnStore Frequently Asked Queries

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
SQL Index
2 Comments
This blog talks about troubleshooting scenarios in FAQ format when dealing with ColumnStore Indexes inside SQL Server. Use a combination of trace flags, query hints, performance counters, extended events discussed in various blogs to gather relevant data and troubleshoot the problem. Sometimes I have seen people use ColumnStore as a…
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Oct18

Interview Question of the Week #041 – What is a Merge Join?

Pinal Dave
SQL, SQL Interview Questions and Answers, SQL Server, SQL Tips and Tricks
SQL Joins
2 Comments
Question: What is a Merge Join? Answer: The Merge Join transformation provides an output that is generated by joining two sorted data sets using a FULL, LEFT, or INNER join. The Merge Join transformation requires that both inputs be sorted and that the joined columns have matching meta-data. The user cannot…
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Oct17

SQL SERVER – Script Upgrade Mode on Failover – Why?

Pinal Dave
SQL, SQL Server, SQL Tips and Tricks
2 Comments
Troubleshooting Cluster related queries is always a challenge and every once in a while I get mails around these. One of my friend wrote email to me and it caught my attention and I took couple of days to explore and felt worth to share it here: <EMAIL> Hi Pinal.…
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Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 22 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.

Pinal has authored 14 SQL Server database books and 94 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,800 database tech articles on his blog at https://blog.sqlauthority.com.

Pinal is an experienced and dedicated professional with a deep commitment to flawless customer service. If you need help with any SQL Server Performance Tuning Issues, please feel free to reach out at pinal@sqlauthority.com.

Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2).


Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long-term multi-channel campaigns to drive leads for their sales pipeline.


Comprehensive Database Performance Health Check

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