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What is DESC command in Oracle?

What is DESC command in Oracle?

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 is the use of DESC command?

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.

How do you describe an object in SQL?

Simply put the cursor on a function, table, or other object in the editor window and press the F4 key, and detail about the object appears. The F4 or Describe window is useful for displaying object information and table information including data, syntax, and statistics.

How can I see the structure of a table in SQL?

Using SQL Server Management Studio

  1. In Object Explorer, select the table for which you want to show properties.
  2. Right-click the table and choose Properties from the shortcut menu. For more information, see Table Properties – SSMS.

What does DESC mean in SQL?

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

What command can be used to view the structure of a table?

– The structure of a table can be viewed using the DESCRIBE TABLE_NAME command. – Provides a description of the specified table or view. For a list of tables in the current schema, use the Show Tables command.

How do I view a SQL description?

SQL Server: sp_help table_name (or sp_columns table_name for only columns) Oracle DB2: desc table_name or describe table_name. MySQL: describe table_name (or show columns from table_name for only columns)

How do you describe a snowflake table?

Describes either the columns in a table or the current values, as well as the default values, for the stage properties for a table. DESCRIBE can be abbreviated to DESC.

What is difference between primary key and unique constraints?

A primary key is a column of table which uniquely identifies each tuple (row) in that table. Unique key constraints also identifies an individual tuple uniquely in a relation or table. A table can have more than one unique key unlike primary key.

How do I list all tables?

SQL command to list all tables in Oracle

  1. Show all tables owned by the current user: SELECT table_name FROM user_tables;
  2. Show all tables in the current database: SELECT table_name FROM dba_tables;
  3. Show all tables that are accessible by the current user: