What is DESC command?

What is DESC command?

The DESC command is used to sort the data returned in descending order.

What type of command is DESC?

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. SHOW columns from yourTableName command.

How do you describe a table in db2?

Tables are logical structure maintained by Database manager. In a table each vertical block called as column (Tuple) and each horizontal block called as row (Entity). The collection of data stored in the form of columns and rows is known as a table.

How do you describe a view in db2?

To define a view, you use the CREATE VIEW statement and assign a name (up to 128 characters in length) to the view. Specifying the view in other SQL statements is effectively like running an SQL SELECT statement. At any time, the view consists of the rows that would result from the SELECT statement that it contains.

What is the result of DESC command?

So desc or describe command shows the structure of table which include name of the column, data-type of column and the nullability which means, that column can contain null values or not.

How do you write a description of a table?

Tips

1. Start by saying what information is shown.
2. In the second paragraph give an overview of the most important features of the information.
3. Be selective and choose the key observations and trends.
4. Divide your observations into paragraphs about different aspects of the data.

How do you DESC a table in mssql?

Just select table and press Alt + F1 , it will show all the information about table like Column name, datatype, keys etc.

How do I view table structures in IBM data Studio?

In the upper right pane, right-click the desired table and select Alter in the context menu.

1. Again, in the upper pane, double-click the table name to show its list of columns, then select a column.
2. In the lower pane select the Documentation option and start writing or editing the column description.

What is the use of describe command how it is different from show tables?

Description. Provides a decription of the specified table or view. For a list of tables in the current schema, use the Show Tables command. For a list of views in the current schema, use the Show Views command.

What command retrieves data from the database?

Answer. SQL SELECT command is used to retrieve data from a database.

What does describe command do in SQL?

The DESCRIBE command enables you to describe objects recursively to the depth level set in the SET DESCRIBE command. You can also display the line number and indentation of the attribute or column name when an object contains multiple object types.