MySQL

You might want to cancel a repair process on your MySQL server if, for example, the process has stalled and become unresponsive. MySQL incorporates a repair tool that allows developers to run…

Some columns in MySQL, such as date and time stamp columns, cannot contain the null value. If you attempt to update the column to a null value, you receive the error message that the update column…

The MySQL "insert" statement adds a new record to your database. After you use this statement, you can either ignore the new ID added to the database or retrieve it in a new variable. You…

The MySQL database system provides developers with a range of numerical data types to choose from, including various integer types. The range of values you can store within a database using integers…

MySQL has a list of reserved words used to create functions and stored procedures in your database. You use the tick mark key to use these reserved words as a database column name. These tick marks…

SQL is "Structured Query Language," an open standard for making interoperable databases. MySQL is an open-source SQL database program, which is widely used as the back end for website…

The MySQL "exists" statement tells you if an entry already exists in the database. You use this statement to avoid inputting duplicate content into your database. You must determine the…

The MySQL "pause" feature lets you stop and pause execution of a query statement running on the database. Use the pause feature in MySQL Query Browser when you want to stop and view the next…

When you create a MySQL database, each product, customer and orders table contains a list of records that you can traverse in your code. The data is set up in a hierarchical organization, so you query…

On a Drupal website, you can display information from your MySQL database tables. For example, on a commerce site, you might have a unique ID for each customer transaction. You can pull the number…

The Ajax language processes HTML forms and passes the forms' information to a database processing page. To connect the Ajax language to your MySQL database, pass the Ajax data to your PHP data…

Websites often capture user data and store it in a database. To capture data from website users and submit it to a MySQL database system, developers use a combination of HTML and server side scripting…

Many websites use data stored in the MySQL relational database system. Using this system, developers model their data in tables and columns. Each record of data in a single table can include a value…

When it's started with the --log-slow-queries option, the MySQL slow query log stores a list of all SQL statements that took longer than a preset time to execute. This allows you to see any SQL…

The Family Tree Maker software can use MySQL to import data into your database. With its import feature, you can import the data from another computer. An FTM file extension indicates that you have a…

MySQL is noted for its flexibility, and programmers can easily make changes to existing MySQL databases to allow for changes in functionality of their database applications. For example, setting a…

You can create a dynamic Web page that is populated from data stored in MySQL database tables. The MySQL language provides access for modifying the stored content, such as adding and deleting records…

Websites built using the Drupal platform rely on a database to store website settings and content. To delete a session cache of stored data on your database, access your MySQL database using the…

The MySQL database engine includes functions that allow you to add and subtract different columns in a database table. MySQL uses the plus sign and negative sign to add and subtract integers in a list…

The MySQL "select" query lets you output characters from your database tables. The MySQL Query Browser application shows you the output characters when you test the code on your database…

Oracle’s MySQL lets companies and developers manage large databases in both a visual and command-line format. Some databases might include tokens (large strings of letters and/or numbers to…

With MySQL, there are two possible character sets available for your data to be stored in. These Unicode character sets reflect the amount of data that is stored per character in the MySQL database.…

When you process a mySQL result output in your PHP code -- PHP being the overwhelmingly dominant language used in conjunction with mySQL -- you may need to eventually insert a return ID or variable…

HSQLDB is a Javascript-based relational database platform, similar to MySQL. Standing for Hyper Structured Query Language Database, HSQLDB comes embedded with a web server, command line interface and…

Avoiding "all-in" joins while selecting data from a MySQL database allows your server to manipulate a smaller number of records and therefore faster process data. MySQL is a computer…

Keeping tabs on your websites and Web servers can be a daunting task, especially when considering the many variables at play in any networking environment. One of the ways you can monitor MySQL…

MySQL is a relational database management system that you primarily use to save and retrieve records from tables in a database. However, you can use it for other functions, such as multiplying values…

When you issue commands to either a MySQL database or a DB2 database, you use SQL, the standard programming language for doing this. Whenever you want to do something with a database, therefore, you…

With MySQL, you can analyze and interpret errors and performance from a number of automatically created logs. As with any type of file, the larger it gets, the slower and more error-prone it gets.…

If you are experiencing slow MySQL performance with Magento, there are various tweaks you can do to increase the speed. The slowed performance is due to the default MySQL configurations on Web…

If you find that your XAMPP configuration with MySQL is running slowly, this is likely due to a firewall or anti-virus error. XAMPP is an all-in-one application that includes the Apache web server,…

In MySQL you can set up a database replication (replica) from one server to another. This is a direct sync that mirrors all actions on each server. Therefore, it is unlike a backup, because delete…

You can select a subset of data from a SELECT statement using MySQL (My Standard Query Language). MySQL permits programmers to return a subset of data based on almost any imaginable criteria. For…

If you want to share files over the Internet and maintain logs in the process, you can use ProFTPD with MySQL. ProFTPD, an FTP server application, features a much larger selection of configurable…

Triggers are one of the new features in MySQL, the relational database management system. Triggers are related to certain tables and are activated by a particular event. You can use triggers to check…

The time required for execution of inserting a row in MySQL depends on a few factors -- the connection between client and server, transferring the query to the server, parsing query, inserting rows,…

The foreign key (FK) of one table links to the primary key of another MySQL table. You use these keys to create queries that join the tables, so you can view a list of data from one query instead of…

The time it takes a MySQL query to run is a reflection of a number of different factors, from the efficiency of the table design and the size of the fields involved to the number of records the query…

When you build a query in MySQL, you can use the LIMIT clause to specify how many results you want to see. For example, you have a query that returns 1,000 results, but you only want to see 10 of…

Visual Basic .NET uses the "DataGridView" control to lay out data in a tablelike format. Programmers are not required to create the table, but they must query the MySQL database to create a data set.…

The MySQL database lets you query data between two values. These values can be decimal or integer numbers, or you can use dates to query between two date ranges. MySQL includes the Query Browser…

Modifying your MySQL database to use the UTF-8 character set is important if you want to store Arabic characters in your database. UTF-8 is an encoding for the Unicode character set, which includes…

The MySQL.exe program is installed in the "bin" directory on your computer. As a command-line application, you must have an active Command Prompt and be within its working directory to access it.…

Using the Delete Low Priority query in MySQL enables programmers to delete the desired records from a table without consuming much CPU resources. This query can take longer to complete, in comparison…

MySQL provides several versions that you can use on your database server. When you are ready to upgrade, you must uninstall the current version and use the MySQL MSI file to install the new version.…

MySQL databases are used by many interactive Web pages to display dynamic data. The MySQL language enables you to access the content stored in your MySQL database. You will often want to select…

MySQL stores data differently depending on what it is. For instance, a string of text characters is stored differently than an integer or a floating-point number. Sometimes you may need to convert…

The MySQL UPDATE query modifies existing records in a MySQL database. The query is helpful when you need to change information in a record. To use the query, you use the update keyword, specify which…

MySQL tables have columns you set up to contain different types of data. A numeric column is set up as an integer, so you insert only numbers in the column fields. To delete these numbers, you must…

MySQL has conversion functions that let you transfer from a string variable to an integer. The string must contain a number to properly convert, but you can then insert the converted integer variable…

MySQL uses an "insert" statement to insert values into database tables. You must insert values into the right fields to keep data integrity. You create a string variable and insert it into the table…

MySQL contains data to provide you with a way to create a dynamic website. You use a "select" statement to query the server and identify if a record exists. You use this type of command to ensure you…

An integer (INT) field in a database contains a numeric number. Inserting an integer value requires an integer field set up in your table. You can insert an integer value in a table using the MySQL…

You may need to update one or more fields in a MySQL database table if, for example, your database contains customer information, and one customer moves, making it necessary to update that customer's…

The asterisk character is a keyword used in MySQL programming, so you must insert an asterisk character using string notation if you wish it to appear in text. This means you must surround the…

You can insert multiple rows in the MySQL database using the insert and select statements. You insert multiple SQL table rows when you want to transfer data from one table to another. You do this…

MySQL is a database management program that allows you to create and update SQL (Structured Query Language) databases. You can search the MySQL databases by using MySQL server and MySQL software…

In MySQL, having a logical order for the columns, or fields, sometimes makes managing a table easier. If you did not create your tables in this fashion, you may use the "ALTER TABLE" syntax to change…

MySQL is the most widely used open source database for web applications. Content management systems such as Drupal and Wordpress often require MySQL in their installations. It is also the database…

When working with and managing the Microsoft MySQL Server on your computer you can quickly deploy commands in the console window of the MySQL Server application using the Structured Query Language, or…

A driver is a system utility that provides an interface to a hardware or software device (in this case, a JDBC engine) from another entity in the system (SQL Server Express). You must find and use an…

The hypotenuse of a triangle is calculated using the Pythagorean Theory. This theory has an equation you use to calculate the hypotenuse from an "a" and "b" number saved in your MySQL database. This…

Changing hosting providers for a database-driven website and migrating your database to the new provider is a somewhat daunting task if handling a large database. When migrating one MySQL database to…

MySQL is an open-source database that is widely used in database-driven websites. In conjunction with programming languages such as PHP and ASP.net, MySQL can let you create a site with features such…

MySQL is a relational database that is optimized to hold data from a website. The "update" statement updates the columns of existing rows with a value specified in the statement. The "set" clause…

A database helps to keep your information in order. The MySQL database management system helps you keep the hundreds or even thousands of records in your database organized and accessible with ease.…

MySQL is a free database server used to create dynamic web pages. Foreign keys link to a primary key in your tables. These keys are columns in your MySQL tables. They link related records in separate…

Structured Query Language (SQL) is the computer programming language used to create, add to, modify and query databases. Occasionally, it's necessary to change all instances of a field within a…

MySQL, an open-source database, provides small and large companies with a database engine used for desktop and Web applications. The MySQL database tables allow you to insert, edit, retrieve and…

MySQL is relational database management software that can support multiple databases and users. First released in 1995, the software is among the most popular database systems and runs on a wide range…

MySQL databases are built on tables. Each table has columns (categories) and rows (entries). The default order of rows is an ascending order along the defined ID column (a special column is specified…

When a system error happens to a mySql database, or when a table simple receives a large amount of incorrectly formatted data, the table indexes may become corrupt. The mySql system will inform a user…

After logging in to MySQL, create a user, give it a name and decide what access the user will have. Create a user in MySQL and give them password with tips from a software developer in this free video…

MySQL is a database engine similar to postgresql, oracle, or Ms SQL server in that it allows you to create tables and store data. For many dynamic web sites MySql is a requirement for operation -…

If you want your web site to jump from home page to professional resource, one of the best ways is to add database capabilities. MySQL is a popular, free database server with dozens of books to teach…

Technically there is no "fetch array" function in MySQL. It's a PHP function that interacts with a MySQL database. MySQL databases are not very useful if application code can't have easy access to the…

There are multiple ways to delete data from a database in MySQL. At times it may even be necessary to delete entire tables, since some tables are temporary--created to be the target of a SELECT INTO…

With a MySQL database, the UPDATE command is used to change some columns of a row already in the database. Usually, this is done to keep information in a database current.

Rows from a MySQL SELECT query are returned in an arbitrary or unpredictable order. Since the return has more to do with internal hashing and search algorithms than it does with your data, the order…

There will be times when multiple users need to access the same database, at which point you will need to change the MySQL privilege table. Depending on user needs, you may provide limited or full…

Microsoft Access database files can be easy to manipulate. But networking the files, especially large ones, is not so easy. Making them secure also raises issues. With the right tools, it is possible…

MySQL is a server program for querying databases. It will allow you to get the data you need from your database as well as managing the database and allowing the user to get reports. MySQL is a…

MySQL is a database software that will help you store and manage data. SQL has become quite a convention in the business world. Its syntax is built on a series of words that will allow you to do all…

If you are moving your Web site to a new server or just backing up your MySQL database, you will need to export a MySQL database. To do this you can either use the phpMyAdmin interface or the SSH…