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Oracle SQL Developers
Understanding of the Oracle database, utilities, and tools
Knowledge of PL/SQL packages and triggers
Awareness of data analysis, data modeling, design, and implementation.
Knowledge of implementation and and design of ETL processes using ORACLE built-in functions
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Programming questions to assess SQL skills
database management and .NET Framework
You have created a PL/SQL cursor that is declared in a package specification. Which of the following statements about this cursor is correct?
- The cursor can be opened in one PL/SQL block and fetched in another block within the same schema session.Correct Answer
- The cursor is automatically opened when any package construct is invoked.
- The cursor name cannot be repeated because it is unique to a schema.
- The cursor is never closed until the schema is disconnected.
What is the output of the following PL/SQL query:
"Create of Replace Function Tax-Amt Return Number is Place_wise_tot_tax : = 0; Begin Select sum(TaxAmt) from Tax where location = Place; Place_wise_tot_tax = TaxAmt; Return Place_wise_tot_tax End Tax-Amt; "
- Returns the tax amount
- Returns the place name
- Error Correct Answer
- None of these
What happens when you submit the following code to the SQL*PLUS client interface?
"CREATE OR REPLACE FUNCTION GET_TOTAL (student_id IN OUT NUMBER) RETURN NUMBER AS Total NUMBER(10); BEGIN SELECT COUNT(*) INTO total FROM STUDENTS_MARKS_TAB WHERE STUDENT_ID = student_id; END; "
- Parsing error because the IN OUT parameter type is unacceptable in functions
- Parsing error because there is no RETURN statement at the end of the function
- Parsing error because the parameter student_id cannot have the same name as the column STUDENT_ID in the STUDENT_MARKS_TAB
- Function will be created successfullyCorrect Answer
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