Guidelines

How do you get the description of a table in Oracle?

How do you get the description of a table in Oracle?

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. For a list of available schemas, use the Show Schemas command. If the table or view is in a particular schema, qualify it with the schema name.

What is DESC in Oracle SQL?

DESC[RIBE] (SQL*Plus command) Describe an Oracle Table, View, Synonym, package or Function. Note that because this is a SQL*Plus command you don’t need to terminate it with a semicolon.

How do you DESC a table in SQL Developer?

Syntax of SQL DESCRIBE TABLE. DESCRIBE | DESC [TableName | ViewName]; The terms mentioned above are described below: The TableName denotes the name of the table in the database for which we want to see the structure.

What is DESC table in SQL?

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. All of these features of table are described at the time of Creation of table.

How do you get DDL of a table in Oracle?

You can get DDL ( Create Script ) of any table as follows. select dbms_metadata. get_ddl( ‘TABLE’, ‘TABLE_NAME’,’SCHEMA_NAME’ ) from dual; For example; You can get MEHMETSALIH.

How do you use DESC?

When sorting your result set in descending order, you use the DESC attribute in your ORDER BY clause. For example: SELECT last_name FROM employees WHERE first_name = ‘Sarah’ ORDER BY last_name DESC; This SQL Server ORDER BY example would return all records sorted by the last_name field in descending order.

How do I get the DDL of a table in SQL Developer?

Steps to Generate DDL Script for All Tables in SQL Developer

  1. Open Export Data Modeler in DDL File.
  2. Select Database Version and Data Modeler.
  3. Select All Tables.
  4. Select the check box “Generate DDL in Separate Files” to save the tables script in separate physical files on our machine.

What is a table DDL?

A data definition language (DDL) is a computer language used to create and modify the structure of database objects in a database. These database objects include views, schemas, tables, indexes, etc.

How do I view a table in SQL?

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.