How is the database displaying the table structure?

There are several common methods for displaying table structures in a database, such as querying system tables or using specific commands.

1. To display the structure of a table in MySQL, you can use either the DESCRIBE command or the SHOW COLUMNS command. For example, using the command DESCRIBE table_name will show the column names, data types, keys, default values, and other information for the specified table.
2. Oracle: To display the structure of a table, use the DESC command or query system tables such as user_tab_columns. For example, executing DESC table_name will show the column names, data types, and lengths of a specified table.
3. To view the structure of a table in SQL Server, you can use the sp_help command or query system tables like sys.columns. For example, running the sp_help table_name command will display details such as column names, data types, and lengths for the specified table.
4. To display the structure of a table in PostgreSQL, you can use the \d command or query the information schema. For instance, using the \d table_name command will show the column names, data types, constraints, and other information for the specified table.
5. In SQLite, you can use the PRAGMA table_info command to display the structure of a table. For example, using PRAGMA table_info(table_name) command will show the column names, data types, and other information of the specified table.

These methods can be adjusted according to the specific database system and its version.