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This article mainly introduces what the field in mysql refers to. It is very detailed and has a certain reference value. Friends who are interested must finish it!

A field in a database refers to a column of a table. Each row in the data table is a "record", and each record contains all the information in that row; and the field is a smaller unit than the record, and the set of fields make up the record, and each field describes a certain feature of the document, that is, the data item. and there is a unique field identifier for computer recognition.

We call each row in the table a "record", and each record contains all the information in that row, just like all the information about someone in the address book database, but the record does not have a specific record name in the database. It is often indicated by the number of rows in which it is recorded. A field is a unit smaller than a record, and a collection of fields make up a record. Each field describes a feature of the document, that is, a data item, and has a unique field identifier for computer recognition.

Field

(field)

A member that represents the variable associated with the object or class.

In a database, most of the time, the "column" of a table is called a "field", and each field contains information about a topic. Just like in the address Book database, "name" and "contact number" are properties common to all rows in the table, so these columns are called the name field and the contact number field.

Sometimes, however, a field is not a column in a table, such as using as to calculate the contents of the column and "save" it to another field.

The above is all the contents of what the fields in mysql refer to. Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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