Your query runs. The numbers are wrong. Nothing errors.
69 SQL entries with the part every other cheat sheet leaves out — why you reach for it, and the specific way it bites you. Every query was executed against a real PostgreSQL 16 database and the book prints the actual result rows.
Sound familiar?
If any of these are costing you time right now, keep reading.
- A filter in WHERE instead of ON quietly turned your LEFT JOIN into an inner join
- NOT IN with a NULL in the subquery returned nothing and did not complain
- You know window functions exist and write a self-join anyway
- Top-N-per-group comes up constantly and you look it up every time
- You are never quite sure whether it is HAVING or WHERE
- You have never seen a cheat sheet actually show the rows a query returns
There's a simpler way.
The SQL Cheat Sheet — 69 entries. Not a list of commands. what each one does, why you reach for it, and the way it bites you.
Everything inside
- handbook.pdf — 69 entries across 10 sections, 78 pages
- wall-sheet.pdf — the whole toolkit on one page, built for printing
- examples/ — 69 ready-to-use files, one per entry, grouped by section
- Captured output on 69 examples — what PostgreSQL 16 actually printed
- A mental-model paragraph opening every section
- "Watch out" on every entry — the specific way each one bites people
- "See also" on every entry — the related flags worth knowing next
- Licence covering commercial use of every example file
- Free updates to the 2026 edition
The query runs. No error. The numbers are just wrong — and three of the four usual suspects are silent: a LEFT JOIN with a filter in the wrong clause, a NULL that made your NOT IN return nothing, and a GROUP BY you did not think through.
Most cheat sheets do not help with that, because a list of flags tells you what to type and never why. This one is built the other way round. Every entry answers four questions:
What it does — one sentence, in plain English.
Why you reach for it — the model underneath, so the next command becomes obvious instead of needing another search.
What it looks like — a complete, self-contained example.
How it bites you — the specific mistake people actually make with this one.
Every example was actually run. 69 of the 69 examples in this handbook were executed on PostgreSQL 16 while it was being built, and the box underneath each one shows exactly what the machine printed — not what somebody typed from memory. The same examples ship as files you can run yourself.
69 entries across 10 sections:
01 — SELECT basics
02 — Filtering and NULL
03 — Joins
04 — Aggregation and GROUP BY
05 — Subqueries and CTEs
06 — Window functions
07 — Modifying data
08 — Tables, types and constraints
09 — Dates, strings and JSON
10 — Performance and reading a query plan
What you get:
handbook.pdf — 69 entries, 78 pages, a mental-model paragraph opening every section
wall-sheet.pdf — the whole toolkit on one printable page, built to live next to your monitor
examples/ — 69 ready-to-use files, one per entry, grouped by section
Your own licence — the example files are yours to use in your own work, including paid client work
Written for developers and students who can write a SELECT and keep getting surprised by joins, NULLs and GROUP BY.
The SQL Cheat Sheet
69 SQL entries with the part every other cheat sheet leaves out — why you reach for it, and the specific way it bites you. Every query was executed against a real PostgreSQL 16 database and the book prints the actual result rows.
- handbook.pdf — 69 entries across 10 sections, 78 pages
- wall-sheet.pdf — the whole toolkit on one page, built for printing
- examples/ — 69 ready-to-use files, one per entry, grouped by section
- Captured output on 69 examples — what PostgreSQL 16 actually printed
- A mental-model paragraph opening every section
- "Watch out" on every entry — the specific way each one bites people
- "See also" on every entry — the related flags worth knowing next
- Licence covering commercial use of every example file
- Free updates to the 2026 edition
- Format
- ZIP · 769 KB
- License
- Single-user license
- Delivery
- Instant download
What happens after you order
-
1
Pay securely
UPI, cards or net banking through Razorpay. Takes under a minute.
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2
Download instantly
Your download unlocks the moment payment confirms. No waiting for an email.
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3
Keep it in your Library
Re-download from My Account.
Questions people ask before buying
How is this different from the free SQL cheat sheets online?
Free cheat sheets are lists. They tell you what to type and nothing else, which is why you end up looking the same thing up every few weeks. Every entry here explains why you would reach for it and how it goes wrong, and every section opens with the model behind it. That is the part that makes it stick.
Is this for beginners?
No, and it does not pretend to be. It assumes developers and students who can write a SELECT and keep getting surprised by joins, NULLs and GROUP BY — if you have never written any SQL, start with a tutorial and come back.
Were the examples actually tested?
Yes — 69 of the 69 were executed on PostgreSQL 16 while this handbook was built, and the output printed in the book is what those tools returned. The same examples are in the download as files you can run yourself and check.
What exactly do I get after I pay?
A single zip with four things: handbook.pdf (78 pages), a printable one-page wall sheet, an examples/ folder with 69 ready-to-use files, and your licence. Instant download, no waiting.
Can I use the example files in my own projects?
Yes. The licence covers using, modifying and building on every example file in your own projects and in paid client work. The only thing you cannot do is resell the handbook itself.
P.S. Still deciding?
It's a one-time payment of ₹49, delivered instantly. If it saves you even one afternoon, it has paid for itself.
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