Scenario based oracle sql interview questions
WebJan 5, 2024 · 8. Name different types of case manipulation functions available in SQL. There are three types of case manipulation functions available in SQL. They are, LOWER: The purpose of this function is to return the string in lowercase. It takes a string as an argument and returns the string by converting it into lower case. WebThey may also be executed when a user or database event occurs, such as a user logs on or a database is shutdown. Application triggers are executed implicitly whenever a DML …
Scenario based oracle sql interview questions
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WebJul 24, 2024 · Q6) Explain proactive tuning. Answer: Application engineers will be able to determine which grouping of oracle features and system resources will best fulfill the requirements at the time of development and planning. This process is … WebAug 11, 2024 · You can use the LIKE operator in SQL to create a query for this issue: SELECT * FROM EmployeeInfo WHERE EmpFname LIKE ‘____a’; 10.Create a query to fetch details of employees having “DELHI” as their address. SELECT * FROM EmployeeInfo WHERE Address LIKE ‘DELHI%’; Read: Top 9 Data Science Tools in 2024.
WebJun 15, 2024 · Ans: A stored function (also called a. User Function. or. User-Defined Function. ) is a set of PL/SQL statements you can call by name. They are compiled and stored in an Oracle Database and so they got the name as. Stored Function. . Stored functions are very similar to procedures, except that a function returns a value to the … WebApr 13, 2024 · Scenario-based Data Modeling Interview Questions. Here are some examples of scenario-based interview questions to help you enhance your skills and gain expertise-41. Lisa is the owner of CleanAlp, a cleaning service. Property management businesses, that maintain residential complexes, are her company's primary clients (properties).
WebComplex Queries in SQL ( Oracle ) These questions are the most frequently asked in interviews. To fetch ALTERNATE records from a table. (EVEN NUMBERED) select * from emp where rowid in (select decode (mod (rownum,2),0,rowid, null) from emp); To select ALTERNATE records from a table. WebOct 18, 2024 · Question 2: SQL Query to find Max Salary from each department. Answer: You can find the maximum salary for each department by grouping all records by DeptId and then using MAX () function to calculate the maximum salary in each group or each department. SELECT DeptID, MAX(Salary) FROM Employee GROUP BY DeptID.
WebIntroduction. PL/SQL 1.0 was released in 1992 with Oracle 6 as an optional extension. It was with PL/SQL 2.0 that stored procedures, functions, user-defined record types, tables, packages and extensions like DBMS_* were introduced.The latest PL/SQL version is 11.0, which was released with Oracle 11g and came with advanced features such as native …
WebMar 19, 2024 · SQL means structured query language that is used to communicate with the database, retrieve information and manipulate data stored in the database. It is the most in demand skill that will help you throughout your career, irrespective of the changes in technology that take place every day. So if you have the passion to work … Continue … lawtons avalon mallWeb1. Prefer to use views and stored procedures in spite of writing long queries. It’ll also help in minimizing network load. 2. It’s better to introduce constraints instead of triggers. They are more efficient than triggers and can increase performance. 3. Make use of table-level variables instead of temporary tables. lawton virginiaWebHere is the best and top SQL interview questions and answers. Q1. How to delete duplicate records? Using rowi. SQL > delete from emp where rowid not in (select max (rowid) from emp group by empno); This technique can be applied to almost scenarios. Group by operation should be on. lawula nkosi lyricsWebBasic and Advanced PL/SQL Interview Questions; Scenario-based PL/SQL Interview Questions; ... Here are some popular Oracle PL/SQL interview questions that you should practice: Name the components of the physical database structure of an Oracle database. Describe a tablespace. lawya krish rittooWebSQL Queries Interview Questions Oracle Part 1 Netezza. Sales ... Sales Scenario For Interview Examples SQL Queries Interview Questions Oracle Part 1 Netezza April 29th, … lawula nkosi the soilWebQ-4. Write an SQL query to print the first three characters of FIRST_NAME from the Worker table. Ans. The required query is: Select substring (FIRST_NAME,1,3) from Worker; Q-5. Write an SQL query to find the position of the alphabet (‘a’) in the first name column ‘Amitabh’ from the Worker table. Ans. lawton vaskaWeb@trickyinterviewquestions Got this question on one for the forum, seems bit complex hence created a video so that it is easy to understand the query and appr... lawtons saint john