Question 1

What is a DDL file?

Accepted Answer

A DDL (Data Definition Language) file contains SQL statements used to define or modify the structure of database objects, such as tables, indexes, views, and users. Common DDL commands include CREATE, ALTER, and DROP. These files are often saved with a .ddl or .sql extension.

Question 2

How do I use this DDL Viewer?

Accepted Answer

Click the "Open Local File" button to select a .ddl or .sql file containing DDL statements. Its content will be displayed as plain text. Our general SQL Viewer (link to /viewer/sql) can also open these files. For files focusing on data manipulation (SELECT, INSERT, etc.), see our SQL Query/DML Viewer (link to /viewer/sql-query).

Question 3

Does this tool execute DDL commands or connect to a database?

Accepted Answer

No, this viewer only displays the text content of the DDL script. It does not parse the SQL, connect to any database, or execute the commands. Applying DDL scripts directly impacts database structure and should be done with caution using appropriate database tools.

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