What is the command to describe a table in DB2?

What is the command to describe a table in DB2?

In DB2, enter on db2 command prompt. Also the following command works: describe SELECT * FROM table_name; Where the select statement can be replaced with any other select statement, which is quite useful for complex inserts with select for example.

What is the use of describe 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 I describe my SQL?

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 to describe table works in DB2?

Now let’s see how to describe table works in DB2 as follows: Basically, the table command shows the following output as follows. End result of select and Xquery statement. It also used to display the OUT and INOUT parameters. Different columns from the specified table and view.

How do I connect to a DB2 server from the command line?

Also suppose that the alias db2 has been set for the Db2 command line processor name, and your user ID is myid01. If your password is mypw01, you can use the following command to connect to the server: If your credential is the RACF PassTicket phrase TMOK73SJ, you can use the following command to connect to the server:

How to specify DB2 connection properties?

Specify connection properties only if your system administrator tells you to do so. The authorization name to use when connecting to the Db2 server. This name is case insensitive. However, if you run the LIST TABLES command to see your own tables, the case of user-id must match the case of the schema name for your tables.

What does the describe command do in SQL?

The DESCRIBE command displays metadata about the columns, indexes, and data partitions of tables or views. This command can also display metadata about the output of SELECT, CALL, or XQuery statements.