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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Controlling User Access | 5% | - Grant privileges on tables and on a view - Differentiate system privileges from object privileges - Distinguish between granting privileges and roles |
| Topic 2: Retrieving Data Using the SQL SELECT Statement | 5% | - Differentiate between SQL statements and SQL*Plus commands - List the capabilities of SQL SELECT statements - Execute a basic SELECT statement |
| Topic 3: Displaying Data from Multiple Tables Using Joins | 15% | - View data that does not meet a join condition by using outer joins - Join a table to itself by using a self-join - Cross join tables - Write SELECT statements to access data from more than one table using equijoins and non-equijoins |
| Topic 4: Restricting and Sorting Data | 6% | - Use ampersand substitution to restrict and sort output at runtime - Use DEFINE and UNDEFINE commands - Sort the rows that are retrieved by a query - Limit the rows that are retrieved by a query |
| Topic 5: Using Single-Row Functions to Customize Output | 10% | - Describe the differences between single-row and multiple-row functions - Perform arithmetic with date data - Manipulate dates with the date functions - Manipulate numbers with the ROUND, TRUNC, and MOD functions - Manipulate strings with character function in the SELECT and WHERE clauses |
| Topic 6: Using Conversion Functions and Conditional Expressions | 10% | - Use conditional IF THEN ELSE logic in a SELECT statement - Apply the NVL, NULLIF, and COALESCE functions to data - Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions - Describe implicit and explicit data type conversion |
| Topic 7: Creating Other Schema Objects | 10% | - Create synonyms for database objects - Create and maintain indexes - Create, modify, and retrieve data from a view - Create, maintain, and use sequences |
| Topic 8: Reporting Aggregated Data Using Group Functions | 15% | - Include or exclude grouped rows by using the HAVING clause - Identify the available group functions - Group data by using the GROUP BY clause - Describe the use of group functions |
| Topic 9: Manipulating Data | 14% | - Insert rows into a table - Update rows in a table - Delete rows from a table - Describe each data manipulation language (DML) statement - Control transactions |
| Topic 10: Using DDL Statements to Create and Manage Tables | 14% | - Describe the data types that are available for columns - Create a simple table - Drop, rename, and truncate tables - Review the table structure - Alter table definitions - Categorize the main database objects |
| Topic 11: Working with Oracle Database SQL | 8% | - Describe the Oracle Database architecture - Create a container database - Start up and shut down a database - Explain the installation of Oracle Database software |
| Topic 12: Using Set Operators | 5% | - Describe set operators - Describe the order of precedence when the set operators are used - Use a set operator to combine multiple queries into a single query |
| Topic 13: Using Subqueries to Solve Queries | 15% | - List the types of subqueries - Describe the types of problems that subqueries can solve - Define subqueries - Write single-row and multi-row subqueries |
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NEW QUESTION # 206
View the exhibit and examine the descriptions of the DEPTand LOCATIONStables.
You want to update the CITYcolumn of the DEPTtable for all the rows with the corresponding value in the CITYcolumn of the LOCATIONStable for each department.
Which SQL statement would you execute to accomplish the task?
Answer: D
NEW QUESTION # 207
The SALES table has columns PROD_IDand QUANTITY_SOLDof data type NUMBER.
Which two queries execute successfully?
Answer: C,E
NEW QUESTION # 208
Which two statements are true about Oracle databases and SQL?
Answer: A,C
Explanation:
B). True. Oracle databases guarantee read consistency at the transaction level, meaning that each query can only see data that has been committed before the query began executing.
C). True. When an UPDATE statement is executed, Oracle locks each row as it is updated to prevent other transactions from modifying it until the transaction is committed or rolled back.
A is incorrect because updates made by one user cannot be rolled back by another user. D is incorrect because a query can access tables in other schemas if proper permissions are granted. E is incorrect because a user can own only one schema, which has the same name as the user in an Oracle database.
NEW QUESTION # 209
Which two statements are true about transactions in the Oracle Database server? (Choose two.)
Answer: B,D
NEW QUESTION # 210
View the exhibit and examine the data in ORDERS_MASTERand MONTHLY_ORDERStables.
ORDERS_MASTER
ORDER_TOTAL
ORDER_ID
1 1000
2 2000
3 3000
4
MONTHLY_ORDERS
ORDER_TOTAL
ORDER_ID
2 2500
3
Evaluate the following MERGEstatement:
MERGE_INTO orders_master o
USING monthly_orders m
ON (o.order_id = m.order_id)
WHEN MATCHED THEN
UPDATE SET o.order_total = m.order_total
DELETE WHERE (m.order_total IS NULL)
WHEN NOT MATCHED THEN
INSERT VALUES (m.order_id, m.order_total)
What would be the outcome of the above statement?
Answer: A
Explanation:
Explanation/Reference:
References:
https://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9016.htm
NEW QUESTION # 211
......
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