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In MySQL, whether each table is stored in a separate file depends on the storage engine used. For example, the InnoDB storage engine typically stores all tables in a shared space within a single tablespace file (like ibdata1), although it can be configured to use separate files for each table. On the other hand, the MyISAM storage engine stores each table in its own individual files, with .frm, .MYD, and .MYI extensions for the schema, data, and index, respectively.
What else can I help you with?
Can you join a table to itself?
Yes. In MySQL you can join a table to itself. You must use different alias name for each instance.
What would you have to do to a table in a Microsoft Word to make it look like a tabbedlist?
Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.Use the Convert to Text option in the Table options and use the Tab as the delimiter to separate what was in each cell on a row.
Can you name a field KEY in a MySQL table?
In a MySQL table, a field key is typically referred to as a "primary key." The primary key is a unique identifier for each record in the table, ensuring that no two rows have the same value in that field. It can be defined using the PRIMARY KEY constraint when creating or altering a table. Additionally, other types of keys, such as foreign keys, can establish relationships between tables.
How the primary key is declared in MySQL?
Its best to choose an ID for each table to use as the Primary Key (PK). This is best as an INT due to speed.
What is Attribute in MySQL Database?
In a MySQL database, an attribute refers to a column within a table that defines a property or characteristic of the data stored in that table. Each attribute has a specific data type, such as integer, varchar, or date, which determines the kind of data it can hold. Attributes collectively define the structure of the table and help organize the data in a meaningful way, allowing for efficient data retrieval and manipulation.
Data base system?
System that store data that is related to each other are known as database system. Example of database system : mysql, sql+, oracle etc.
What is a row in a table also called?
A row in a table is also called a record or tuple. Each row represents a single entry or instance of data in a table, containing values for each column defined in the table's schema. Rows collectively store the data for a database table, with each one typically corresponding to a unique item or entity.
Why is it better to store data in multiple related table rather than one big table?
Basically to minimize redundancy (unnecessary repetition) of data in the database. By storing only information (fields) that directly relate to each other in each table AND modeling how the tables should relate to each other you also get the maximum flexibility in ways to retrieve information. A simple example would be a table to store INVOICES and a table to store CUSTOMERS. The INVOICE table only has information about an invoice; Inv#, Amount, Date, etc. and The CUSTOMER table information about customers; Name, Address, Phone, etc. An Invoice has one customer but a customer can have many invoices. If we give the customer a unique ID then, in the INVOICE table we need only store that ID (called a foreign key) but with it the database can look up the rest. So you dont store customer name, address, etc over and over again every time a customer gets a new invoice. The process of splitting up data into separate structures is called normalization. Often times data is de-normalized and repeating data allowed for performance or snapshot reasons.
What is a Trigger in MySQL Define different types of Trigger?
A trigger is a named database object that is associated with a table, and that activates when a particular event occurs for the table. Some uses for triggers are to perform checks of values to be inserted into a table or to perform calculations on values involved in an update. A trigger is associated with a table and is defined to activate when an INSERT,DELETE, or UPDATE statement for the table executes. A trigger can be set to activate either before or after the triggering statement. For example, you can have a trigger activate before each row that is deleted from a table or after each row that is updated. Sender : Yugant khokhar
Can you sort more than one column at a time using Excel?
No, you can sort multiple columns or rows if you hightlight a range, but all columns or rows will need to be sorted with the same criteria (e.g. lowest to highest). You can sort an entire row by clicking on the row number at the left of the screen, then sort, as desired. You also can do the same for columns by clicking on the column letter at the top of the screen.
The collection of related records called as file or table?
A table is a collection of related records in a database. Each record in a table represents a specific entity or object, and each column in the table represents a specific attribute or characteristic of that entity. Tables are used to organize and store data in a structured and efficient manner.
What are the three operating systems that can run MySQL server?
MySQL Server can run on various operating systems, with the three primary ones being Windows, Linux, and macOS. Each of these platforms supports MySQL installation and operation, allowing users to manage databases effectively. Additionally, MySQL can also be run on various distributions of Linux, such as Ubuntu and CentOS, further enhancing its versatility.
