How to Use Describe in Mysql

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Query OK 0 rows affected 042 sec. The following example demonstrates how to display columns of the orders table in the classicmodels database.

Mysql Describe Table Different Examples Of Mysql Describe Table

The DESCRIBE and EXPLAIN statements are synonyms used either to obtain information about table structure or query execution plans.

. Now we want to describe that table. Switch to a specific database. TRUE if all the conditions separated by AND is TRUE.

The SQL command describe allows you to view the column structure of a MySQL table. Use the DESCRIBE statement. MySQL provides DESCRIBE statement for this purpose.

DESCRIBE or DESCboth are same comma. SHOW columns from yourTableName command. To show all columns of a table you use the following steps.

Let us understand it with the help of an example that explains how to show columns of the table in the selected database. The tables structure will be presented as follows example. The DESCRIBE DESC Statement.

Using MySQL Describe on the Sample Table Let us now use the MySQL Describe command as follows 1 DESCRIBE Employee. The syntax of the describe statement is simple as shown below. It provides a listing of the columns of a table the type of each column and additional information on each column.

----------------------------------------------------------- Field Type Null Key Default Extra ----------------------------------------------------------- ID int 11 NO PRI NULL auto_increment Name char 35. Let us consider one example. The following is the query that display.

If we want to show the structure of a database table or tables in the server then we will use the SQL command DESCRIBE or other keyword DESC which is identical to DESCRIBE one. Mysql CREATE TABLE tbl_name - - id INT NOT NULL - first_name CHAR 30 NOT NULL - last_name CHAR 30 NOT NULL - UNIQUE id - INDEX last_name first_name -. SELECT COLUMN_NAME AS Field COLUMN_TYPE AS Type IS_NULLABLE AS NULL COLUMN_KEY AS Key COLUMN_DEFAULT AS Default EXTRA AS Extra FROM information_schemaCOLUMNS WHERE TABLE_SCHEMA.

The database name must be specified on a single line. The table names are as follows. The DESC is the short form of DESCRIBE command and used to dipslay the information about a table like column names and constraints on column name.

As you can see the output here is the names of the columns eid Name Salary Department and Date_Joined. The resulting data from the MySQL CLI looks like this for the example table above. SELECT FROM INFORMATION_SCHEMACOLUMNS WHERE TABLE_SCHEMAyourDatabaseNameG.

Or using a programming language like PHP and then using the functions to retrieve each row from the query. Login to the MySQL Database. You can use COLUMNS table of INFORMATION_SCHEMA to get expected result as an alternate solution of DESCRIBE table option.

Switch to a specific database. You can run this from the MySQL CLI. To view the structure of a MySQL table called recipes use the following SQL command.

The first step is to login to the database server using the username and password. SQL DESCRIBE TABLE is a SQL statement that is accountable for telling something about a specific table in the database. The syntax is as follows.

Execute the DESCRIBE statement. For example assume that a question requires you to know about a table named City. We have a table named developers inside the educba named database.

We get the output as follows Breaking down the DESCRIBE command output Field Shows the names of the columns in our table. Where name_of_table is the table name that you want to describe. Login to the MySQL database server.

Here I am using my database sample with two tables. Example of MySQL DESCRIBE table. For more information see Section 13775 SHOW COLUMNS Statement and Section 1382 EXPLAIN Statement.

The DESCRIBE command is equivalent to the following command. Take an example first we will create a table then get it described. You can use INFORMATION_SCHEMACOLUMNS to describe all tables in database through a single statement.

Login to the MySQL database. Newlines in database names are not supported. As the name suggests DESCRIBE is used to describe something.

The USE statement tells MySQL to use the named database as the default current database for subsequent statements. In this post we will learn how to In this post we will learn How to Use MySQL DESCRIBE Statement Statement By Examples. This statement requires some privilege for the database or some object within it.

The DESCRIBE statement is a shortcut for the SHOW COLUMNS FROM syntax. To get information about the table present in the database and find the. The MySQLs DESCRIBE or DESC both are equivalent.

Login into the MySQL database server. Since in database we have tables thats why we use DESCRIBE or DESC both are same command to describe the structure of a table. The SQL query to get the table structure is.

TRUE if all of the subquery values meet the condition. Now we will use imdb database so we will.

Mysql Describing Tables Youtube