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| Section | Weight | Objectives |
|---|---|---|
| Controlling User Access | - System and object privileges - Roles, granting and revoking privileges | |
| Displaying Data from Multiple Tables | 15% | - Equijoins and non-equijoins - Self-joins and outer joins - Cartesian products |
| Managing Views | - Create, modify and drop views - Updatable and read-only views | |
| Working with Time Zones and Date/Time Data | - TIMESTAMP, INTERVAL data types - Time zone conversion functions | |
| Relational Database Concepts | 10% | - Theoretical and physical aspects of relational databases - Relationship between database and SQL - ERD and SQL statement mapping |
| Retrieving Data Using SQL SELECT Statement | 20% | - Arithmetic operations and NULL handling - Column aliases, concatenation, literals and DISTINCT - SELECT statement syntax and usage |
| Using Data Dictionary Views | - Retrieve metadata and object information | |
| Conversion Functions and Conditional Expressions | 10% | - TO_CHAR, TO_NUMBER, TO_DATE functions - NVL, NULLIF, COALESCE and CASE expressions - Implicit and explicit data type conversion |
| Using Single-Row Functions to Customize Output | 20% | - Character, number, and date functions - Nested functions usage |
| Managing Tables and Constraints | - Data types, creating/altering/dropping tables - Temporary and external tables - Constraints: primary key, foreign key, unique, check, not null | |
| Aggregating Data Using Group Functions | 10% | - Handling NULLs in group functions - SUM, AVG, COUNT, MAX, MIN functions - GROUP BY and HAVING clauses |
| Managing Indexes, Synonyms and Sequences | - Create and maintain indexes - Create and use synonyms - Create and use sequences | |
| Using Subqueries to Solve Queries | - Correlated subqueries for update/delete - Single-row and multi-row subqueries | |
| Using SET Operators | - UNION, UNION ALL, INTERSECT, MINUS operators - Ordering results with set operations | |
| Restricting and Sorting Data | 15% | - Substitution variables, DEFINE and VERIFY commands - Operator precedence - WHERE clause and filtering conditions - ORDER BY clause and sorting rules |
| Manipulating Data and Managing Transactions | - Transaction control: COMMIT, ROLLBACK, SAVEPOINT - Multi-table inserts - INSERT, UPDATE, DELETE, MERGE statements |
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NEW QUESTION # 408
Which two statements execute successfully?
Answer: C,E
NEW QUESTION # 409
Evaluate the following query
What is the correct output of the above query?
Answer: A
NEW QUESTION # 410
View the Exhibit and examine the structure of the CUSTOMERS and CUST_HISTORY tables.
The CUSTOMERS table contains the current location of all currently active customers.
The CUST_HISTORY table stores historical details relating to any changes in the location of all current as well as previous customers who are no longer active with the company.
You need to find those customers who have never changed their address.
Which SET operator would you use to get the required output?
Answer: D
NEW QUESTION # 411
Examine the structure of the MARKS table:
Which two statements would execute successfully? (Choose two.)
Answer: C,D
NEW QUESTION # 412
Which two statements are true regarding roles? (Choose two.)
Answer: B,D
Explanation:
Explanation
http://docs.oracle.com/cd/E25054_01/network.1111/e16543/authorization.htm#autoId28
NEW QUESTION # 413
......
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