SQL
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Software Development
The 10 Most Popular DB Engines (SQL and NoSQL) in 2015
About two years ago, we’ve published this post about the 10 most popular DB engines, where we analyzed the data…
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Software Development
You Probably don’t Use SQL INTERSECT or EXCEPT Often Enough
When people talk about SQL JOIN, they often use Venn Diagrams to illustrate inclusion and exclusion of the two joined…
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Software Development
Don’t Format Dates in SQL. Use the DATE Literal!
I’m seeing people do this all the time. They want to hammer a date or timestamp constant into their SQL…
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Software Development
Passing Arrays to a PostgreSQL PL/pgSQL Function
It can be handy to pass a collection of strings to a PL/pgSQL stored function via a PostgreSQL array. This…
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Software Development
There is no Such Thing as Object-Relational Impedance Mismatch
Much of the ORM criticism of the last decade missed the point, being inaccurate. By the end of this article,…
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Software Development
Divided we Stand: Optional
Our recent article “NULL is Not The Billion Dollar Mistake. A Counter-Rant” got us a lot of reads, controversial comments,…
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Enterprise Java
Use stored procedures with Hibernate
This article show different ways to call stored procedures from hibernate. JDBC actions will not be covered. Postgresql will be…
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Software Development
Setting PostgreSQL psql Variable Based Upon Query Result
When using PostgreSQL‘s psql command-line tool to interact with a PostgreSQL database via operator interaction or script, it is not…
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Software Development
Procedure-Like Functions in PostgreSQL PL/pgSQL
PostgreSQL does not support stored procedures in the sense that a database such as Oracle does, but it does support…
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