How do I get top and record in SQL?
MySQL supports the LIMIT clause to select a limited number of records, while Oracle uses FETCH FIRST n ROWS ONLY and ROWNUM .
- SQL Server / MS Access Syntax: SELECT TOP number|percent column_name(s) …
- MySQL Syntax: SELECT column_name(s) …
- Oracle 12 Syntax: …
- Older Oracle Syntax: …
- Older Oracle Syntax (with ORDER BY):
How do I get the latest record in SQL?
You should note that the last() function is only supported in MS Access. But there are ways to get the last record in MySql, SQL Server, Oracle etc.
- SELECT column_name FROM table_name.
- ORDER BY column_name DESC.
- WHERE ROWNUM <=1;
How do I find previous and next records in SQL?
You can use UNION to get the previous and next record in MySQL. Insert some records in the table using insert command. Display all records from the table using select statement.
How do you select top and bottom rows in SQL?
- CREATE TABLE [dbo].[ Student1Details](
- ) ON [PRIMARY]
- INSERT INTO Student1Details.
- SELECT 1, ‘Nitin’, ‘CS’,’IND’ UNION ALL.
- SELECT 2, ‘Ravi’, ‘EI’,’ENG’ UNION ALL.
- SELECT 3, ‘Tim’, ‘ME’,’US’ UNION ALL.
- SELECT 4, ‘Rick’, ‘ME’,’IND’ UNION ALL.
- SELECT 5, ‘Rakesh’, ‘CS’,’ABD’ UNION ALL.
How do you get top 3 ranks in SQL?
SELECT name, value, rn FROM ( SELECT name, value, ROW_NUMBER() OVER (PARTITION BY name ORDER BY value DESC ) AS rn FROM t ) tmp WHERE rn <= 3 ORDER BY name, rn ; Tested in: Postgres.
How do I get top 10 rows in SQL?
Example – Using TOP PERCENT keyword
For example: SELECT TOP(10) PERCENT contact_id, last_name, first_name FROM contacts WHERE last_name = ‘Anderson’ ORDER BY contact_id; This SQL SELECT TOP example would select the first 10% of the records from the full result set.
How do I find the youngest person in SQL?
To find the youngest student enrolled, you can use the following query: SELECT FirstName, LastName, Age FROM STUDENT WHERE Age = (SELECT MIN(Age) FROM STUDENT); This query returns all students whose age is equal to the age of the youngest student.
How do I get last 3 records 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 you find the maximum salary in each department?
SELECT * FROM department; Get the highest salary of each department on the table. Here our table contains a DEPT_ID and it has two different categories UI DEVELOPERS and BACKEND DEVELOPERS, and we will find out the highest salary of the column.
How can I get the next row value in SQL Server 2008?
Using that allows SQL Server to auto-assign what you’re calling row numbers. DECLARE @newId int; SET @newId = 0; select @newId = max(id) + 1 from my_table; insert into my_table values(@newId, …) … more code … Wrap the above code in a transaction and you are good to go.
How do I see previous row values in MySQL?
Summary: in this tutorial, you will learn how to use the MySQL LAG() function to access data of a previous row from the current row in the same result set. The LAG() function is a window function that allows you to look back a number of rows and access data of that row from the current row.
What is cursor in MySQL?
MySQL cursor is a kind of loop facility given to traverse in the result of SQL one by one. We can operate on every result by using the cursor in MySQL. Cursors are supported in stored procedures, functions, and triggers only. MySQL cursor is available from version 5 or greater.
How do I select top 5 rows in SQL?
SQL SELECT TOP Clause
- SQL 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 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 view rows in SQL?
Right-click the Products table in SQL Server Object Explorer, and select View Data. The Data Editor launches. Notice the rows we added to the table in previous procedures. Right-click the Fruits table in SQL Server Object Explorer, and select View Data.