sql code

SQL Database Code Generator Using HTML, CSS and JavaScript with Source Code

Submitted by rems on
Welcome to the SQL Database Code Generator! This powerful web app simplifies database schema design by letting you visually create tables, columns, indexes, and foreign keys—then instantly generates clean, production-ready SQL for your preferred database system. Whether you're prototyping a new application, learning SQL, or managing database migrations, this tool eliminates manual coding errors

4 Simple Steps to Emulating Real Sequences in MySQL

Submitted by intellicon on
If all you want to do is create a unique ID for a record, the auto_increment feature in MySQL will do the job nicely. Sometimes, however, you need more functionality. Unfortunately, unlike Oracle or PostgreSQL, MySQL doesn't have native support for the nextval() function, so creating real sequences is a little more challenging. First, we need to define what we want the nextval() function to achieve. We want to be able to begin the sequence with any number, and auto increment in multiples of any number, not just 1, including negative integers (-1 for example).
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