SQL Job Interview Questions and Answers 1 :: What is SQL (Structured Query Language)? SQL is an English like language consisting of commands to store, retrieve, maintain & regulate access to your database.Read More 2 :: What is the SQL*Plus? SQL*Plus is an application that recognizes &...
so employers test candidates on various concepts ranging from basic to advanced-level queries. This blog covers common SQL interview questions and their answers to help you succeed in your next interview.
No.Questions 1 What is a database? 1 What is DBMS? 1 What is SQL? 1 What is PL/SQL? 1 What is the difference between SQL and PL/SQL? 1 What is RDBMS? 1 What is a database table? 1 What is a query? 1 What is subquery? 1 What are the types of subquery?
A query, in SQL, is a command used to request data or update information from a database table or combination of tables. Users can write and execute queries to retrieve, delete or update information in a database. Usually, a query response returns data from different tables within the data...
20.Select all records from Employee table where name not in ‘Amit’ and ‘Pradnya’ Answer: select * from Employee where name Not in (‘Amit’,’Pradnya’); Click Here to get 20 Interview Questions for Tech Mahindra…. 21.how to write sql query for the below scenario ...
The Microsoft SQL Server max degree of parallelism (MAXDOP) configuration option controls the number of processors that are used for the execution of a query in a parallel plan. This option determines the computing and threads resources that are used for the query plan operators that perform the...
Properties of Sub-Query A subquery must be enclosed in the parenthesis. A subquery must be put in the right hand of the comparison operator, and A subquery cannot contain a ORDER-BY clause. A query can contain more than one sub-queries. ...
in a database application. A table scan happens when there is no index available to help a query. In a table scan SQL Server examines every row in the table to satisfy the query results. Table scans are sometimes unavoidable, but on large tables, scans have a terrific impact on ...
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里面储存了很多网页,网页的url地址,title和网页的内容,然后你用一个sql查询将url匹配的排在最前, title匹配的其次,body匹配最后,没有任何字段匹配的,不返回。就是上面这道面试题,让我想了一个下午,在网上找资料,最后用下面方法实现 SELECT * FROM page w 职场 数据库 休闲 SQL面试题 SQL面试题答案 转载 ...