What is the method to query all tables in Teradata?

In the Teradata database, you can use the following method to query all tables: 1. Using the DBC table query: You can use the DBC.Tables table to query all tables in the database. Here is an example query statement:

SELECT TableName
FROM DBC.Tables
WHERE TableKind = 'T'  -- 这里限制只查询物理表，不包括视图等其他对象

2. Using the HELP TABLE command: The HELP TABLE command can be used to query information about all tables. Here is an example command:

HELP TABLE *

This will display detailed information about all tables in the database, including table names, column names, data types, etc. Please note that the above method is only applicable to users with sufficient permissions.