If there is a way to fix the error which they get when they try to open Schema Changes History. The error was related to Not Have Any Data to Show.
Entity-Attribute-Value Tables: Why They Hurt Queries
Understand entity-attribute-value query costs, lost types, indexing limits, and alternatives using real columns, sparse columns, or JSON.
MySQL – Download Sample Database – Sakila, World, Employee
Get MySQL sample databases Sakila, World, and Employees. Follow Windows install steps, verify each import, and choose the right dataset.
Granting Read Access to One Schema With GRANT SELECT ON SCHEMA
Use GRANT SELECT ON SCHEMA for focused read access, test a loginless user, and check ownership chains and table-level DENY behavior.
SQL Puzzle – Schema and Table Creation – Answer Without Running Code
This Table Creation puzzle asks for an explanation before you run its code. I suggest examining the batch separators carefully.
Retired Features Still in Your Schema: Stretch, text and More
Before an upgrade, look for text and image columns, old rules and defaults, and Stretch metadata. These queries show what is there.
Does NOLOCK Really Applies No Lock? – Interview Question of the Week #209
Does NOLOCK really applies no lock? No. NOLOCK takes a Sch-S, or schema stability, lock. Here is a simple script to see it for yourself.