Tricky interview questions in oracle sql
WebMar 7, 2024 · Every interview is different and the scope of a job is different too. Keeping this in mind we have designed the most common Oracle Interview Questions and answers for 2024 to help you get success in your interview. In this article, we will cover most common 2024 Oracle Interview Questions that are mostly asked in an interview. These questions ... 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 …
Tricky interview questions in oracle sql
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Web1.Tricky SQL Queries and Interview questions. 2.Video for tricky interview queries. Tricky SQL Queries for interview : Question 1 : What is query to fetch the employee records where salary of employee is greater than 57 k and less than 75 k? Answer : There are two different solutions to achieve this , Solution 1 : Using Between..and operator WebQ39. A Clause which is the pseudocolumn used to know the current value of the sequence. Q40. A Query which is used in top-N analysis is. Q41. An operator is used to get and display the redundant records. Q42. All the datatypes with respect to Oracle 9i …
WebMay 17, 2024 · 2a: Find the total number of streams by date. The grouping is done on the column date, and the SUM () aggregate function is used to get the number of streams by date. 2b: Find the total number of streams by date and director. To get an answer to this question, data needs to be grouped by two columns. WebMay 11, 2024 · Here is the compilation of the Most commonly asked oracle plsql interview questions. These will for sure help you in the interview. The questions are from basic to advanced levels and cover most of the aspects of the PLSQL programming. I …
WebApr 8, 2024 · Since you do not store the date in Log a record from 2 years ago will perfectly match the LEFT JOIN condition, and your query will report success, even if the job has been deleted a year ago. However, not all of the techniques that are used to do so are efficient or even safe. SQL Queries Interview Questions and Answers on "SQL Select" - Examples . Web41. Considering the database schema displayed in the SQLServer-style diagram below, write a SQL query to return a list of all the invoices. For each invoice, show the Invoice ID, the billing date, the customer’s name, and the name of the customer who referred that customer (if any). The list should be ordered by billing date.
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WebQ13: Describe the characteristics ideal Clustered index keys. Short: Although SQL Server allows us to add up to 16 columns to the clustered index key, with a maximum key size of 900 bytes, the typical clustered index key is much smaller than what is allowed, with as few columns as possible. marwoods magical crackersWebWrite an SQL query for removing duplicates from a table without using a temporary table. Method 1: Using Group By and Having clause. DELETE FROM StudentStipend WHERE StudId IN ( SELECT StudId FROM StudentStipend GROUP BY Project, Stipend HAVING COUNT (*) > 1)); Method 2: Using rowId in Oracle. huntington beach city pool and gym hoursWebEvery interview is different and the scope of a job is different too. Keeping this in mind we have designed the most common Advance SQL Interview Questions and Answers to help you get success in your interview. Below is the top Advance SQL Interview Questions that are asked frequently in an interview: 1. marwood shoringWebSep 12, 2024 · Tables: This is a set of elements organized in a vertical and horizontal manner. Tablespaces: It is a logical storage unit in Oracle. Views: Views are a virtual table derived from one or more tables. Indexes: This is a performance tuning method to process the records. Synonyms: It is a name for tables. Q6. huntington beach city school district caWeb49. Define SYSDATE and USER keywords in PL/SQL. Ans: In PL/SQL, SYSDATE is a keyword that means the current server system date. It returns the current date and time set for the OS where the database server exists. The USER keyword is a pseudo column that returns an existing user's login ID for the current session. huntington beach city school district boardWebUp to 64,000 partitions are possible. Objects with LONG fields and LONG RAW fields cannot be partitioned. 3. What are the advantages of partitioning? Improved administration because many operations can be carried out on separate partitions (data loads, index creation and rebuilding, backup/recovery and so on). huntington beach city servicesWebAnswer: This is the most common Oracle Interview Questions asked in an interview. Constraints are the rules defined over data. Named constraint for a primary key can be added in two ways: 1. During table creation: CREATE TABLE Employees (. marwoods middlesbrough