How do you have two selected statements in one query?

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How do you have two selected statements in one query?

To combine two or more SELECT statements to form a single result table, use the set operators: UNION, EXCEPT or INTERSECT….To eliminate redundant duplicate rows when combining result tables, specify one of the following keywords:

  1. UNION or UNION DISTINCT.
  2. EXCEPT or EXCEPT DISTINCT.
  3. INTERSECT or INTERSECT DISTINCT.

How can I get name and marks of top three students using SQL?

SELECT statement is used to get name and marks of top three students.

  1. SQL query is. SELECT Name, Marks FROM Student s1 where 3 <= (SELECT COUNT(*) FROM Students s2 WHERE s1.marks = s2.marks)
  2. SQL (Structured Query Language)
  3. Functions of SQL (Structured Query Language)
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How do you select the top 5 values in SQL?

SQL SELECT TOP Clause

  1. SQL Server / MS Access Syntax. SELECT TOP number|percent column_name(s) FROM table_name;
  2. MySQL Syntax. SELECT column_name(s) FROM table_name. LIMIT number;
  3. Example. SELECT * FROM Persons. LIMIT 5;
  4. Oracle Syntax. SELECT column_name(s) FROM table_name. WHERE ROWNUM <= number;
  5. Example. SELECT * FROM Persons.

How do you write a subquery in a select statement in SQL?

A subquery is just a SELECT statement inside of another. Enclose subqueries in parenthesis (). Alias subqueries in your column list to make it easier to read and reference the results. A subquery either returns a single value or table.

Can you have two from statements in SQL?

A simple SELECT statement is the most basic way to query multiple tables. You can call more than one table in the FROM clause to combine results from multiple tables.

How do I combine two SQL statements?

The UNION operator is used to combine the result-set of two or more SELECT statements.

  1. Every SELECT statement within UNION must have the same number of columns.
  2. The columns must also have similar data types.
  3. The columns in every SELECT statement must also be in the same order.
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How will you show the maximum marks and Min marks together from the student table?

How to Show the Max marks and min marks together from student table? Select min (marks) from Student; Tip : Use the concept of union to show the max and min marks together.

How do you select the highest nth value in SQL?

Using this function we can find the nth highest value using the following query.

  1. DECLARE @nthHighest INT = 2.
  2. DECLARE @nthHighest INT = 2.
  3. ;WITH CTE(EmpId,Empcode,Name,Salary,EmpRank)
  4. SELECT EmpId,Empcode,Name,Salary,
  5. DENSE_RANK() OVER(ORDER BY Salary DESC) AS EmpRank.
  6. SELECT * FROM CTE WHERE EmpRank = @nthHighest.