Posts

Showing posts from 2026

SQL command information

 1. Which is the subset of SQAL commands used to manipulate Oracle Database structures, including tables?      Data Definition Language (DDL) 2. What operator performs patter matching?      LIKE operator 3. What operator test column for the absence of data?      IS NULL operator 4. Which command executes the contents of a specified file?     START <filename> or @<filename> 5. What is the parameter substitution symbol used with INSERT INTO commands?      & 6. Which command displays the SQL command in the SQL buffer, and then executes it?      RUN 7. What are the wildcards used for pattern matching?     _for single character substitution and % for multi-character substitution 8. State true or false. EXISTS, SOME, ANY are operators in SQL.      true 9. State true or false, !=, < >, ^= all denote the same operation.     True 10. What are the priv...