Question: How Do I Get The First N Rows In SQL?

How do I get the first 10 rows in SQL?

The ANSI SQL answer is FETCH FIRST .

If you want ties to be included, do FETCH FIRST 10 ROWS WITH TIES instead.

To skip a specified number of rows, use OFFSET , e.g.

Will skip the first 20 rows, and then fetch 10 rows..

How do I skip the first 10 rows in SQL?

In order to do this in SQL Server, you must order the query by a column, so you can specify the rows you want. Do you want something like in LINQ skip 5 and take 10? SELECT TOP(10) * FROM MY_TABLE WHERE ID not in (SELECT TOP(5) ID From My_TABLE); This approach will work in any SQL version.

What is offset in SQL query?

The OFFSET and FETCH clauses are the options of the ORDER BY clause. They allow you to limit the number of rows to be returned by a query. In this syntax: The OFFSET clause specifies the number of rows to skip before starting to return rows from the query.

How do you find the maximum salary in each department?

You can use : SELECT DepatID, a , b, c FROM EmpDetails WHERE Salary IN ( SELECT max(Salary) FROM EmpDetails GROUP BY DeptID ); if you will use the previous query it will only reflects the records of the min val except the salary as you have used the max function.

How do I find the difference between two columns in SQL?

To calculate the difference between two dates in different columns, we use the two columns createdDate and LastLogin of the registration table and apply the DATEDIFF function on these columns. To find the difference between the two dates in different columns, we need two dates from the different columns.

How do I select the last 3 rows in SQL?

SELECT * FROM (select * from suppliers ORDER BY supplier_name DESC) suppliers2 WHERE rownum <= 3 ORDER BY rownum DESC; Notice that although you want the last 3 records sorted by supplier_name in ascending order, you actually sort the supplier_name in descending order in this solution.

How do I find the first 5 maximum salary in SQL?

Say Employe table contains emp_id, salary, rank, dept_id as columns and has some data in it.To get max salary from Employee table. SELECT MAX(salary) FROM employee;To get max salary from Employee table with respect to dept. … To get top 5 salary. … To get top 5 salary with respect to dept. … To get 2nd max salary.

How do you check if a number is even in SQL?

To determine if a SQL value is even or odd, you can use the modulo operator (%), which returns the remainder after division of its operands. For example, A % B returns the remainder after A has been divided by B.

How do I get last 10 rows in SQL?

The following is the syntax to get the last 10 records from the table. Here, we have used LIMIT clause. SELECT * FROM ( SELECT * FROM yourTableName ORDER BY id DESC LIMIT 10 )Var1 ORDER BY id ASC; Let us now implement the above query.

How do I have multiple rows in one row in SQL?

Here is the example.Create a database.Create 2 tables as in the following.Execute this SQL Query to get the student courseIds separated by a comma. USE StudentCourseDB. SELECT StudentID, CourseIDs=STUFF. ( ( SELECT DISTINCT ‘, ‘ + CAST(CourseID AS VARCHAR(MAX)) FROM StudentCourses t2. WHERE t2.StudentID = t1.StudentID.

How do I select specific rows in SQL?

To select rows using selection symbols for character or graphic data, use the LIKE keyword in a WHERE clause, and the underscore and percent sign as selection symbols. You can create multiple row conditions, and use the AND, OR, or IN keywords to connect the conditions.

Is like in SQL?

The SQL LIKE Operator The LIKE operator is used in a WHERE clause to search for a specified pattern in a column. There are two wildcards often used in conjunction with the LIKE operator: % – The percent sign represents zero, one, or multiple characters. _ – The underscore represents a single character.

How do you delete duplicate rows in SQL?

Delete Duplicates From a Table in SQL ServerFind duplicate rows using GROUP BY clause or ROW_NUMBER() function.Use DELETE statement to remove the duplicate rows.

How do I get the first 5 rows in SQL?

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

How do I select the first n rows in SQL?

SQL TOP, LIMIT or ROWNUM ClauseSQL Server / MS Access Syntax: SELECT TOP number|percent column_name(s) FROM table_name. WHERE condition;MySQL Syntax: SELECT column_name(s) FROM table_name. WHERE condition. LIMIT number;Oracle Syntax: SELECT column_name(s) FROM table_name. WHERE ROWNUM <= number;

How can I retrieve even rows in SQL?

Selecting ODD or EVEN rows from a tableWrite a subquery with an ORDER BY clause. Along with the data columns, select the pseudocolumn rownum with an alias, say rn.In the outer query, reference the alias rn and use the mod function to get odd rows or even rows.

How do I get last 5 rows in SQL?

You need to count number of rows inside table ( say we have 12 rows )then subtract 5 rows from them ( we are now in 7 )select * where index_column > 7 select * from users where user_id > ( (select COUNT(*) from users) – 5) you can order them ASC or DESC.

How do I get last two records in SQL?

If you have primary key on the table, the keys will be in an ascending order. So you can sort the fetched record in descending order and limit it to 2. SELECT * FROM table ORDER BY 1 DESC LIMIT 2; Order by 1 uses the 1st column in the fetched record to do the ordering.