My 2400th blog post is not a boast. After the sad event in Delhi, I write as a father and husband about women safety and why it matters to every Indian.
SQL Server emergency? Email pinal@sqlauthority.com with URGENT in the subject line.
Generate Random Values in SQL Server: SQL in Sixty Seconds #042
To generate random values in SQL Server, pick the function by the job: RAND for one value, CHECKSUM(NEWID()) for a value on every row, CRYPT_GEN_RANDOM for tokens. The tests here count 100,000 draws and show where the common formulas go wrong.
SQL SERVER – Fix: Error: 1505 The CREATE UNIQUE INDEX statement terminated because a duplicate key was found for the object name and the index name
Error 1505 says the CREATE UNIQUE INDEX statement terminated because a duplicate key was found. The word key confuses many developers, so I explain it simply.
SQL SERVER – Fix Error: 8111 – Cannot define PRIMARY KEY constraint on nullable column in table – Error: 1750 – Could not create constraint. See previous errors
New developers often hit Error 8111 when they try a PRIMARY KEY constraint on nullable column, followed by Error 1750. Here is why it happens and how to fix it.
Warning Before SQL Login Passwords Expire With DaysUntilExpiration
A Friday-night login failure is avoidable. One small query warns you weeks ahead, if somebody owns the warning.
Generating Random Numbers Per Row: RAND, NEWID and CRYPT_GEN_RANDOM
Generate random numbers per row with NEWID or CRYPT_GEN_RANDOM, compare seeded RAND, inspect bucket spread, and pick a row without a sort.
SQL SERVER – Difference Between NOLOCK and NOWAIT Hints
Should you use NOLOCK when NOWAIT errors out on a lock? Here is the difference between NOLOCK and NOWAIT, and why neither guarantees a valid answer.
SQL Server slow? Let's fix it together in about four hours.
In my Comprehensive Database Performance Health Check, you share your screen, I guide you, and we fix your biggest performance troublemakers. No passwords. No remote access.
You keep every script, and the know-how to fix it yourself next time.
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My Practical Workshop has no PowerPoint, just live demos. My AI Enablement Workshop shows your team where AI saves hours, and where it quietly costs them.
Over 400 customers have worked with me this way, and not one shared a password. See all consulting options.
Who We Are
Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 24 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.
Pinal has authored 19 books and 125 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 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.
Shaivi Pinalkumar Dave is a book author and a women’s artistic gymnast.

