What kind of data can be stored in MySQL?
MySQL stores information in different formats, based on the type of information that you tell MySQL to expect. MySQL allows different types of data to be used in different ways. The main types of data are character, numerical, and date and time data.
What can I store in MySQL?
A Binary Large Object ( BLOB ) is a MySQL data type that can store binary data such as images, multimedia, and PDF files.
Can we store data in MySQL?
Basically mySQL stores data in files in your hard disk. It stores the files in a specific directory that has the system variable “datadir”. Opening a mysql console and running the following command will tell you exactly where the folder is located.
How many data can store in MySQL?
The MySQL maximum row size limit of 65,535 bytes is demonstrated in the following InnoDB and MyISAM examples. The limit is enforced regardless of storage engine, even though the storage engine may be capable of supporting larger rows.
Is MySQL a file?
Its a MySQL database configuration file. This is the main configuration file of MySQL server. This is found in the root directory where the installation is done. In this file, the user can find the location of data folder.
What are the 3 categories of MySQL data types?
In MySQL there are three main data types: string, numeric, and date and time.
Can I store image in MySQL?
4 Answers. Yes, you can store images in the database, but it’s not advisable in my opinion, and it’s not general practice. A general practice is to store images in directories on the file system and store references to the images in the database.
Which database is best for storing images?
Store in Couchbase a metadata JSON document for each object, maybe a small thumbnail image at most. In that document is data you need about that object in your application quickly, but also a pointer to a purpose built object store like S3, a file system or HDFS. You will get the best of all worlds.
What is the main MySQL program that does all the data handling is called?
–> The main MySQL program that does all the data handling is called mysqld.
What is JSON data type in MySQL?
What is varchar in MySQL?
Varchar in MySQL is a data type used for storing text whose length can have a maximum of 65535 characters. The varchar columns in the table are of variable length string that can hold either numeric or character or both.
Does varchar save space?
Yes, as long as you store 20 characters either you use varchar(20) or varchar(max) both uses the same storage space in SQL server.
Is SQL the same as MySQL?
What is the difference between SQL and MySQL? In a nutshell, SQL is a language for querying databases and MySQL is an open source database product. SQL is used for accessing, updating and maintaining data in a database and MySQL is an RDBMS that allows users to keep the data that exists in a database organized.
Is Postgres faster than MySQL?
Ultimately, speed will depend on the way you’re using the database. PostgreSQL is known to be faster while handling massive data sets, complicated queries, and read-write operations. Meanwhile, MySQL is known to be faster with read-only commands.
What is the limit of MySQL database?
MySQL has no limit on the number of databases. The underlying file system may have a limit on the number of directories. MySQL has no limit on the number of tables. The underlying file system may have a limit on the number of files that represent tables.