SQL Interview Questions This section provides a huge collection of SQL Interview Questions with their answers hidden in a box to challenge you to have a go at them before discovering the correct answer. 2 SQL
PL/SQL Interview Questions This section provides a huge collection of PL/SQL Interview Questions with their answers hidden in a box to challenge you to have a go at them before discovering the correct answer. 2 PL/SQL Online Quiz This section provides a great collection of PL/SQL Multiple...
I will advise against using the web-based recipes like w3schools/tutorialspoint for SQL since you cannot use your data with those. Also, I will advise you to go with learning the MySQL flavour of SQL as it is Open Source, easy to set up in your laptop and has a great client named My...
Answer the questions 37 and 38 that follow the query given below:SQL> DESC employees Name Null? Type --- --- --- EMPLOYEE_ID NOT NULL NUMBER(6) FIRST_NAME VARCHAR2(20) LAST_NAME NOT NULL VARCHAR2(25) EMAIL NOT NULL VARCHAR2(25) PHONE_NUMBER VARCHAR2(20) HIRE_DATE NOT NULL DATE...
HR Interview Questions Computer Glossary Who is WhoSQL - Using the Group Functions QuestionsPrevious Quiz Next 1. Which of the following is NOT a GROUP BY function?MAX MIN NVL AVGAnswer: C. NVL is a general function used to provide alternate value to the NULL values. The functions MAX, MI...
HR Interview Questions Computer Glossary Who is WhoMany to Many RelationshipsPrevious Quiz Next Many to Many relationship between two tables is achieved by adding an association table such that it has two foreign keys - one from each tables primary key. Moreover, classes mapping to the two table...
Generate Coding Logic HR Interview Questions Computer Glossary Who is WhoSQL - COUNT FunctionPrevious Quiz Next SQL COUNT function is the simplest function and very useful in counting the number of records, which are expected to be returned by a SELECT statement.To...
HR Interview Questions Computer Glossary Who is WhoSQL - Using the Set Operators QuestionsPrevious Quiz Next 1.Which SET operator does the following figure indicate?UNION UNION ALL INTERSECT MINUSAnswer: A. Set operators are used to combine the results of two (or more) SELECT statements.Valid se...
T-SQL - Discussion Selected Reading UPSC IAS Exams Notes Developer's Best Practices Questions and Answers Effective Resume Writing AI Based Resume Builder Personal AI Study Assistant Generate Coding Logic HR Interview Questions Computer Glossary Who is WhoDiscuss...
Generate Coding Logic HR Interview Questions Computer Glossary Who is WhoSQL - OverviewTable of content What is SQL? Why SQL? A Brief History of SQL How SQL Works?Previous Quiz Next What is SQL?SQL (Structured Query Language) is a language to operate databases; it includes Database Creation...