A prepared statement is a SQL statement that has been compiled, or prepared, into an access or query plan for efficiency. A prepared statement is available for reuse by the application without the ...

Learn how to master the SELECT statement to form truly useful data queries. This article explains functions, clauses, and keywords that will make your life a lot easier. Due to popular demand, we’re ...

The MySQL SELECT statement controls which columns and values appear in query results, making it one of the most important commands for working with database tables. This lesson covers selecting all ...

Structured Query Language, or SQL, is a programming language used with databases. SQL injection attacks -- when malicious SQL statements are inserted into an input query to gain access to a database - ...

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 ...

What’s your average success rate of getting a SQL statement right on the first try? In best case, you botched a simple statement without side effects and just have to try again with correct syntax or ...

PostgreSQL CASE statements make it possible to add conditional logic directly into SQL queries, working similarly to IF ELSE statements in programming languages and spreadsheet tools. This tutorial us ...