6 Important SQL Commands That Every Programmer Should be Aware of

A database is the most important thing for a website. Every web-based business is based upon data these days. So, managing and securing the web data is essential for every business. If you have an online based business, you should know a few basic things about MySql database which is the most popular database hosting server or framework. Using MySql has a lot of benefits and experts can provide information in that matter with perfection. In the following section, we shall mainly focus on a few commands that are imperative as well as crucial for the database management process through Mysql.

  1. Select Command with MySql

More or less, everyone is familiar with the select command in Mysql, as it is one of the most extensively used commands. This is considered as the simplest Mysql statement. The command has been used for selecting data from the database. Any user or website owner may need to bring certain changes to the data. They may need assistance in the database management process. For that data has to be selected for editing or modifying. All such things can be done with perfection with the “Select” command. There are two major parts of this command in Mysql.

The first part of the command is the specification of the database columns that you want to select. The second part of the command is the command for your database engine on storing the selected data. Basic knowledge of this database management command is more than essential for the e-commerce owners or website managers. For database maintenance or structural changes to the database, this command will be required quite commonly. For database services, you can check RemoteDBA.com.

  1. The “Where” Command

Like “Select,” there is also an important command, and that is known as “Where.” What does this command mean to the people? Why do the developers use it? Well, as the name implies, the command is something related to the searching location of the data on the database. Knowing the location of data is important for many reasons. This command will emerge as effective in finding the location of data on the database server. It will be easier to locate a set of data or a group of data efficiently. This command of Mysql is simple or easy to use. It is quite similar to the Select command of Mysql.

Knowing the location of the data is essential for database managers or website owners for many reasons. It will help the website editor to make changes to the data. It will help the database managers to add security to the data. Many other benefits are there. Experienced database managers should understand those benefits. To implement these benefits, it is important to know the “Where” command for Mysql.

  1. Order for Mysql

The “Order” command of Mysql has been used for getting data in a manner or alignment that you want. You can seek data from the database through a “select” command. Along with “select,” you can use the “order” command to get the results on a structured format. For example, you want to know about the age of some people in your database. For that, you need to use the command as shown below:

SELECT age FROM people

Now, you want to get the ages of people in ascending order. For that, you need to add a few more lines to your database command. Here is the complete command line for you.

SELECT age FROM people ORDER BY age ASC

If you want to see the ages in descending order, you can use “DESC” instead of “ASC.” Overall, this command is pretty useful to get data in a structured way. For database analysts or researchers, such command is important.

  1. Join Command in MySql

Like other commands, this command is considered equally important. This is why Mysql users should know the use of this command. So, what exactly this command will do for you? It will help you to find related data. When you sort a join related data, you shall use this command to get data in a properly structured manner. In command syntax, you should use “LEFT JOIN” command. After that, you have to specify the table that you want to join. On the other hand, you can further specify the column of the table through “USING” command. There is “RIGHT JOIN” command too, and it is exactly opposite to the “LEFT JOIN” command.

  1. Alias Command

For renaming a table on a temporary basis, this command has been commonly used by the Mysql users. If you are using the “Alias” command, you should know that you give a temporary nickname to the table of your choice with the help of this command. The naming is on a temporary basis, and thus it would not work permanently. There is no restriction on choosing the name, as you can choose any temporary name of your choice. In most of the cases, users or developers type a simple name rather than choosing a complex temporary name. Now, the question is why you should choose such a temporary name? Well, at times users need to select more than one table. This is why naming the tables temporarily is important so that sorting the data can become much easier.

  1. Union

This is another crucial command, having vital significance for database management. This command allows you to append rows. The command can be noted as similar to join command which is there to deal with the columns. Well, there are differences too between “join” and “union.” With “union” unrelated rows can be appended. But, “join” command does not work in that way. The results of the two queries can be combined through “union” command.

Overall, at a conclusion note, it can be stated that these commands are important for handling database with care or precision. Knowing the use of the commands will turn you into a smart database manager. Eliminating any potential threats will be furthermore easier with these commands for Mysql.  Website owners, as well as developers, should have perfect knowledge over these commands.

Author: Guest Posting

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