How do you view a table description in SQL?

How can I see table description in SQL?

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 show a table description?

1. To describe a table:

  1. DESCRIBE table_name; is equivalent to this SHOW COLUMN statement:
  2. SHOW COLUMNS FROM table_name; Or you can also use the short form of describe:
  3. DESC table_name; …
  4. EXPLAIN table_name; …
  5. EXPLAIN SELECT * FROM table_name;

How do I view table description in SQL Developer?

To view table data:

  1. In SQL Developer, search for a table as described in “Viewing Tables”. …
  2. Select the table that contains the data. …
  3. In the object pane, click the Data subtab. …
  4. (Optional) Click a column name to sort the data by that column.
  5. (Optional) Click the SQL subtab to view the SQL statement that defines the table.

What is DESC command in SQL?

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

How do I write a database table description?

3 simple statments should do for a table description: one describing what the table holds, one describing the initial state of data in the table (empty or pre-filled), and one describing how data moves in/out of the table. I would also include the table’s cardinality/relationship to other important tables.

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How do you describe a table in pgadmin4?

In pgAdmin 4, we are going to use the information_schema for describing the tables.

PostgreSQL DESCRIBE TABLE using pgAdmin 4

  1. SELECT COLUMN_NAME.
  2. FROM information_schema. COLUMNS.
  3. WHERE TABLE_NAME = ‘customer’;

Which command is used to display 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 find the primary key of a table in SQL Developer?

Answer: You can retrieve primary key information with the following SQL statement: SELECT cols. table_name, cols. column_name, cols.

How do I display the contents of a table in MySQL?

After you create a connection to your database, execute the following two commands: USE <DATABASE NAME>; SELECT * FROM <TABLE NAME>; Then MySQL Workbench will show another pane with the results. This will be the entire contents of the table.

How do I list all tables in a schema in SQL Developer?

These queries perform a UNION ALL to show you a list of all tables and views in the Oracle database.

  1. DBA_TABLES and DBA_VIEWS. SELECT ‘Table’ AS object_type, owner, table_name FROM dba_tables UNION ALL SELECT ‘View’, owner, view_name FROM dba_views;
  2. ALL_TABLES and ALL_VIEWS. …
  3. USER_TABLES and USER_VIEWS.