Clear SQL record How to do it correctly?

Learn how clear the SQL log to keep your computer and operating system optimized, all through this article and its great information.

Why clear the SQL log?

When computers have an operating system with somewhat primary characteristics, that is, a low-capacity RAM memory, between 1GB or 2GB, and a processor with low storage, it results in the system having many things in memory it starts to stick.

The SQL log fills the memory with all its information and, as a consequence, this extra number of files adds to what slows down the system.

By deleting all that record, part of the work that the team has to process is subtracted, making the system more streamlined.

What is the SQL log?

They are the operations that are performed on the SQL server. The SQL server are those that control the movements of the databases, that is, it stores all the information that the company keeps.

The operations that are carried out are records of the data managed by the companies, each of these records are processed and stored on the server. There are different files located in the SQL server, to support all this it is compressed and shown as Log File, it is divided into Virtual Log Files or Virtual Log Files.

The virtual log files are created excessively, because they serve to save the data of the SQL database and, therefore, the storage fills up more, being a disadvantage for the system. It can be seen round, to differentiate it from the other files.

The virtual log files uses a truncation process, this means that the files already used are used, they are placed in rest and pause for a moment. Afterwards, the file is finished, it is used again and the process continues in this way, like a cycle.

What are transactions?

Transactions are information files with content from SQL servers. The transaction file as explained, is saved in a separate folder and the log that is being divided is created.

The transaction file is important, because it is the one who helps to make the backups, in case something is lost in the SQL server. It is modified no matter how much the file is used, since it is compressed to be able to with all the information.

The documents keep tables, which are organizers made by the user, where the field and the records are separated, ordering the information to suit the user.

The field is the name used for the main column of information, which is a main data to separate from other tables. The records are the different rows that can compose the table and have the information of the fields established by the user.

When can a delete transaction log be deleted?

The transaction file can be deleted, when it does not really matter to solve the server and if you only want to delete to free up space on the system. In addition, you can make a hard disk copy or send it to a web server where they can save everything related to the SQL server.

There is information that cannot be eliminated, because the SQl system would stop working, therefore, we must be careful with these registers so as not to affect the system, however, the same system will tell you that this file is in use and not it remove.

How to clear the SQL log?

After explaining what the SQL record contains, we can now go on to explain how to delete it, taking all the necessary precautions, already explained.

1. You have to enter the SQL server, here we can edit or make the changes that we think are necessary to our server.
2. Already in the SQL server, the DELETE command will be used, which normally serves to eliminate any type of process in other programs. Also known as a delete query, it removes all data, but does not eradicate the table.
3. It will be inserted with the DELETE command: "DELETE FROM table_name WHERE column1 = 'value'" (Without the quotes.)
4. You will enter the "DELETE FROM table_name", which will find the table, which contains the SQL record and, therefore, all the information.
5. The command "WHERE column1 = 'value'" is used, the complete record can be located in order to be able to eliminate it exactly. The "WHERE" allows you to limit the deletion of the record, which comply with the characteristics that we request.
6. It is worth noting that if the "WHERE" is not placed as it is or is not specified as it should, records that we wish to keep can be eliminated. The architecture of the table will be maintained, but it will not have any type of information.
7. Keep in mind after writing the codes and registers, that you will not recover anything that was deleted, therefore, check carefully if nothing that has been deleted is necessary.
8. Now, the name of the table to be deleted will be placed, an example: "DELETE FROM songs", without any type of error.
9. Then, the column to be eliminated will be written, that is, the separation of data that we have made in the table, example: «WHERE Rock = 'value'«.
10. Finally, the value that is registered in the category of the table is written, that is, the separation of data that was made, an example: «WHERE Rock = 'jungle'«.
11. The complete record to delete would be the following: «DELETE FROM songs WHERE Rock = 'value'«. The same steps are repeated as many times as necessary to eliminate all the data.

If you liked the article, I invite you to read about: "Database management system What is it for?", an explanatory post about this type of system, I know you will like it.