The certification test for Oracle 11g Database SQL Expert (1Z0-047) requires a profound knowledge of developing a database. Oracle certifications are considered to be the hottest credentials in the database world. To clear the exam of 1Z0-047, you must be well versed with the objectives specified for the test. Practicing especially in the following areas will definitely help raise your level of confidence:

  1. Use the SELECT statement along with its various functions.
  2. Use conversion functions.
  3. Create schema objects.
  4. Use the GROUP function with all its possible clauses.
  5. Use SQL and iSQL*Plus statements.
  6. Use equi-joins, non-equi-joins, self joins, and outer joins.
  7. Generate Cartesian products from tables.
  8. Use sub queries.
  9. Use multi-table INSERTS.
  10. Perform FLASHBACK operations.
  11. Grant and revoke privileges and roles on a table.

  12. Use ROLLUP and CUBE operations.
  13. Use GROUPING and GROUPING SETS functions.
  14. Use hierarchical query and format hierarchical data.
  15. Know the tree structured report.
  16. Use meta characters and replace patterns.