Boost your SQL interview readiness with these 35 carefully selected SQL Interview Questions and Answers. Includes real-world examples, scenario-based queries, and tips to impress interviewers in 2026.

I'm trying to execute SQL query on Polars dataframes using SQLContext and below is my code: ctx = pl.SQLContext().register_many( {"tbl1": df_source, "tbl2": df_reference}) src_df = ...

Abstract: Optimization in PL/SQL Programming is the preeminent aspect for database related applications built using PL/SQL code. PL/SQL statement/Query can be written in different ways for fetching ...

The library itself are just four Prolog files (postgresql.pl, sql_query.pl, messages.pl and types.pl). They need to be in the same folder. An easy way to install this library in your project is ...

Can you chip in? This year we’ve reached an extraordinary milestone: 1 trillion web pages preserved on the Wayback Machine. This makes us the largest public repository of internet history ever ...