MySQL

The data type is defined as the type of data that any column or variable can store in MS SQL Server. What is the data type? When you create any table or variable, in addition to specifying a...

  What is PostgreSQL array? In PostgreSQL we can define a column as an array of valid data types. The data type can be built-in, custom or enumerated. In addition, arrays play an important...

Publicly available web applications are interesting for hackers as resources or earning tools. The range of application of information obtained as a result of hacking is wide: paid access to a...

MySQL is an open-source database management system (DBMS) from Oracle. It was developed and optimized specifically for web applications. MySQL is an integral part of such web services as...

In this article, we will learn how to connect to a MySQL database from Java code and execute simple queries to retrieve and update data. In order to access the database, we will use the JDBC...

PreambleMongoDB has a removal method to remove documents:db.users.remove({name : "Tom"})The remove() method returns the WriteResult object. If one document is deleted successfully, the result is the...

When switching from MS SQL to MySQL, apart from data migration, you must also transfer the application code, which is in the database.Earlier we discussed how to move MS SQL to a MySQL...

PreambleThe whole model of the database device in MongoDB can be presented as follows:If in the relational databases the contents are tables, then in the working with  databases consists of...

MySQL is probably the best known relational database management system. As the "M" of the LAMP web development platform, this open-source solution is very popular worldwide.However, its...

MySQL DISTINCT statement is used to remove duplicates from the result set. The DISTINCT operator may be used only with SELECT operators. Syntax DISTINCT operator in MySQL SELECT DISTINCT FROM...

MySQL FROM statement is used to display tables and any associations required for querying in MySQL. Syntax of FROM statement in MySQL FROM table1 [ { INNER JOIN | LEFT [OUTER] JOIN | RIGHT...

MySQL statement SELECT LIMIT is used to extract records from one or more tables into MySQL and limit the number of records to be returned based on the limit value. Syntax of SELECT LIMIT in...

MySQL statement SELECT is used to extract records from one or more tables to MySQL. Simple syntax for SELECT statement in MySQL SELECT expressions FROM tables [WHERE conditions]; The full...

In MySQL, you can use the SHOW GRANTS statement to display all grant information for the user. This will display the privileges that have been assigned to the user with the GRANT command. Syntax...

The RENAME USER statement is used to rename a user in a MySQL database. Syntax of RENAME USER statement in MySQL RENAME USER user_name TO new_name; Parameters and arguments of the...

The SET PASSWORD statement is used to change a user password in a MySQL database. Syntax to change the password with the SET PASSWORD statement in MySQL SET PASSWORD [ FOR user_name ] = SET...