This enables writing simple SQL queries and data manipulation activities on intermediate datasets. Syntax: CREATE TABLE #table_name(); The below query will create a temporary table: create table #book(b_id int, b_cost int) Now, we will insert the records insert into #book values(1,100) ...
Intermediate SQL JOINS Interview Questions 11. Distinguish between nested subquery, correlated subquery, and join operation. Subquery–Queries can be embedded in other queries. Therefore, an outer query is called the main query and the Internal queries are called subquery. Nested query–The inner qu...
10. What does ALIAS mean in SQL? It is used inside a SQL query to rename a table. Renaming is a procedure that changes the name of a table temporarily without altering the table's real name in the database. It is applicable to both tables and fields. The basic syntax of a table al...
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?
32) Which function gives us the number of affected entries by a query? mysqli_affected_rows()return the number of entries affected by an SQL query. 33) What is the difference between mysqli_fetch_object() and mysqli_fetch_array()?
Application. So it has to be regressed for functionality and performance. To access or manage a database, we need a Structured Query Language (SQL). It is a database programming language that gives us the means to work with different types of databases like Oracle, SQL Server, MYSQL, ...
Here is query You can achieve this task in two ways. a) DATEPART b) Year,Mont,Day Let's see the Query: Split Year,Month and Day from DateTime Column in SQL Server a ) SelectDATEPART(YEAR,ColName)as[Year],DATEPART(Month,ColName)as[Month],DATEPART(Day,ColName)asdate fromtbl_...
What is a view in SQL Server, and why would you use one? A view is a virtual table based on aSELECTquery that can join and simplify complex queries, encapsulate logic, and provide a layer of abstraction. Views enhance security by restricting access to underlying tables, simplify data access...
We have categorized Oracle PL SQL Interview Questions - 2024 (Updated) into 3 levels they are: For Beginners 2) What is SQL and also describe types of SQL statements? SQL stands forStructured Query Language. SQL is a language used to communicate with the server to access, manipulate, and ...
The top 90 most popular SQL interview questions 评分: The top 90 most popular SQL interview questions SQL面试最常见的90个问题及答案。 SQL Interview 2018-11-22 上传 大小:479KB 所需: 9积分/C币 立即下载 Top-k Structure Holes Detection Algorithm in Social Network ...