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How to Get the Column Names from Table in MySQL using PHP

SQL, or Structured Query Language, is a simple query-based language that is simple to read and write. It is one of the world’s most universal languages. SQL databases are critical to our economy.

SQL is recognized as an essential part of the technology industry by the American National Standards Institute. It is the standard language for database management systems in the United States. SQL is used to power databases by companies such as Oracle, Microsoft, Sybase, and Ingres. SQL, on the other hand, isn’t just for large corporations. Because it is low-cost, open-source software that allows anyone to store and update information conveniently and securely, small businesses also widely use it.

SQL is primarily used for storing and retrieving data from databases, but it is capable of much more. SQL can do anything you need to do with a database. It is adaptable, powerful, and quick while remaining accessible and affordable to most businesses. Keep reading to learn about MySQL select query in PHP.

How Does It Operate?

SQL works by reading and displaying data stored in a database’s fields and tables. A database comprises rows and columns that contain relevant and valuable data. A typical e-commerce website may include customer information such as names, emails, phone numbers, and payment information. A music website’s databases may contain information on all available songs.

You will always need to use the following four basic SQL operations:

  1. CreatePutting data into a table
  2. ReadQuery data out of a table
  3. UpdateChange data that’s in a table
  4. DeleteRemove data from the table

SQL is built on these four queries, also known as “CRUD.” Databases only understand SQL, so if your database cannot perform any of these actions, something is likely wrong.

SQL has its own set of markups and rules as well. If a programmer ever wants to work with SQL, they must first understand SQL markups to use the language effectively.

What Are the Benefits of SQL?

  1. SQL is a high-performance database

Despite heavy workloads and high usage, SQL’s performance is faultless. It is ideal for highly transactional and complex databases.

  1. SQL is straightforward to use

SQL is compatible with most databases, including Microsoft SQL Server, Oracle Database, MySQL, SAP HANA, SAP Adaptive Server, and Microsoft Access. Most relational database management systems include SQL support as well as additional features. SQL can also be used to create procedural programming application extensions.

  1. SQL is extremely scalable

It is effortless to create new tables and migrate existing tables to new databases. They are quickly dropped or completed at your leisure.

  1. SQL provides excellent transactional support

SQL can support massive records and handle a large number of transactions simultaneously.

  1. SQL has excellent security capabilities

SQL makes it simple to manage permissions. It’s a breeze to provide and verify your permissions, ensuring the safety of your data.

  1. SQL is appropriate for businesses of all sizes

Is your company SQL-compliant? The answer is most likely yes. SQL is ideal for both small and large businesses. It is easily scalable to accommodate all of your future growth.

  1. SQL is an open-source database

Open-source software frequently comes with a thriving developer community that quickly provides updates and troubleshooting assistance. As a result, it is less expensive than most proprietary solutions, making it ideal for small businesses with limited resources. The importance of community involvement in open-source software cannot be overstated, and it enables a reasonable amount of future-proof software.

SQL Advantages

SQL has several advantages over other database management languages:

  1. Quick query processing.

SQL can process a large amount of data in a short period. Because of their efficiency, core operations such as deletion, insertion, and data manipulation occur at breakneck speed.

  1. Little coding knowledge is required.

You don’t need to learn to code if all you want from your database is simple data retrieval. You need to know the syntax for the select, insert, update, and into functions. The language isn’t overly complicated or lengthy.

  1. It uses a standard language.

SQL is open-source and is supported by a user community. No matter where you are in the world, you can find documentation and troubleshooting help.

  1. SQL is a portable language.

SQL can be run on desktop computers, gaming systems, laptops, and servers. You can even embed it within applications based on your requirements and preferences.

How to Get the Column Names from Table in MySQL using PHP

The SHOW COLUMNS syntax displays information about the columns in a given table. This syntax is useful for running SQL queries in the phpMyAdmin panel and displaying MySQL table fields. However, if you want to select and get the column names from the table in the script, you must use PHP to execute a MySQL query.

In MySQL, the INFORMATION SCHEMA is the best way to get a table’s columns. In the following code snippet, we will demonstrate how to retrieve and display the column names from a table using PHP and MySQL.

Obtaining Column Names in MySQL

The following query in MySQL will find the column names from a table and return all of the columns from the specified table.

SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = ‘db_name’ AND TABLE_NAME = ‘tbl_name’

To select the columns of a table from a specific database, use TABLE SCHEMA.

Using PHP and MySQL, retrieve the columns from a table.

The code below demonstrates obtaining all column names from a table using PHP and MySQL.

<?php

// Database configuration

$dbHost     = “localhost”;

$dbUsername = “root”;

$dbPassword = “root”;

$dbName     = “codexworld”;

// Create database connection

$db = new mysqli($dbHost, $dbUsername, $dbPassword, $dbName);

// Check connection

if ($db->connect_error) {

    die(“Connection failed: ” . $db->connect_error);

}

// Query to get columns from table

$query = $db->query(“SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = ‘db_name’ AND TABLE_NAME = ‘tbl_name'”);

while($row = $query->fetch_assoc()){

    $result[] = $row;

}

// Array of all column names

$columnArr = array_column($result, ‘COLUMN_NAME’);

SQL is a powerful yet simple, query-based language that allows you to manage databases easily. It has a strong community behind it and is open-source, making it a low-cost option regardless of your budget.

SQL is widely used in many business industries, including technology, finance, retail, music, and medicine. It’s incredibly user-friendly, scalable, and accessible.

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