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  1. Db2 12 - Codes - SQLCODE -158 - IBM

    These elements might be column names, SQL functions, and expressions, for example. The number of column names that are specified for a table in a CREATE TABLE statement is not …

  2. SQL Tutorial - W3Schools

    SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, …

  3. Online SQL Compiler - CodeChef

    When you run your code and encounter errors, our AI assistant will explain the issue and offer corrected code that you can easily copy and paste to fix the problem, making debugging faster …

  4. Online SQL Editor - myCompiler

    Simple and easy to use IDE to edit, run and test your SQL code.

  5. T-SQL Tutorial: Write Transact-SQL Statements - SQL Server

    Nov 18, 2025 · This tutorial is intended for users who are new to writing SQL statements. It helps new users get started by reviewing some basic statements for creating tables and inserting data.

  6. SQL Code Generator

    To use this code generator, take the following steps - Describe the SQL code you want to generate. Click on the Generate button. The resulting SQL code will be displayed in the output …

  7. SQL Cheat Sheet ( Basic to Advanced) - GeeksforGeeks

    Jul 23, 2025 · In this guide, we will see a comprehensive cheat sheet for essential SQL operations, offering a practical reference for tasks ranging from database creation to advanced …

  8. SQL Formatter - Code Beautify

    SQL formatter is a utility that converts the unreadable SQL code into a readable format. It preserves all the details of the original, just in a different format.

  9. Sandbox SQL

    SandboxSQL is a online SQL editor and compiler where you can write and execute SQLite queries online. You can use the template databases to learn, practice, or test queries.

  10. 20 Basic SQL Query Examples for Beginners - LearnSQL.com

    Aug 17, 2023 · SQL is designed to talk to a database. We do that using sentences that we call queries, which are SQL commands for retrieving data from the database. We’ll soon show you …