Are you a SELECT statement pro?
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Questions and Answers

What is the syntax for using the SELECT statement in Oracle?

  • SELECT table_name INTO column_name
  • SELECT column_name INTO table_name
  • SELECT column_name FROM table_name (correct)
  • SELECT table_name FROM column_name

What is the danger of using the asterisk (*) shorthand in application code?

  • None of the above
  • It may cause the application to access removed columns (correct)
  • It may cause the application to crash
  • It may cause the application to not process additional columns

What are some of the clauses that can be used in the SELECT statement in Oracle?

  • SELECT ALL, SELECT DISTINCT, SELECT UNIQUE
  • ORDER BY, GROUP BY, HAVING, JOIN (correct)
  • CREATE TABLE, ALTER TABLE, DROP TABLE
  • INSERT INTO, UPDATE, DELETE

What is the SELECT statement used for in Oracle?

<p>To query data from a single table (B)</p> Signup and view all the answers

What is the syntax for retrieving data from multiple columns using the SELECT statement in Oracle?

<p>SELECT column1, column2 FROM table_name (B)</p> Signup and view all the answers

Why should you avoid using the asterisk (*) shorthand when embedding a query in applications?

<p>It can cause issues if the table structure changes (D)</p> Signup and view all the answers

What is the syntax for using the SELECT statement in Oracle?

<p>SELECT column_name FROM table_name (C)</p> Signup and view all the answers

What is the purpose of the asterisk (*) shorthand in Oracle SELECT statements?

<p>To retrieve data from all columns of a table (C)</p> Signup and view all the answers

Why is it not recommended to use the asterisk (*) shorthand in application code?

<p>The table may have more or fewer columns in the future (D)</p> Signup and view all the answers

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