Why is the language developers and DBAs use to organize data such a mess? Here are 13 reasons we wish we could quit SQL, even though we probably won't. For all its popularity and success, SQL is a ...
My scenario: Clone from PostgreSQL v15.2 running on CentOS 7.9 to Azure Database for PostgreSQL v16.2 Using pgcopydb 0.16.35.g30d7bcd from docker image. I am getting errors almost at the end of the ...
A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...
Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...
When designing objects in SQL Server, we must follow certain best practices. For example, a table should have primary keys, identity columns, clustered and unclustered indexes, data integrity and ...
The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, locating a single record in a large table can take several seconds; with the ...
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