How do I view only 10 rows in SQL?
To select first 10 elements from a database using SQL ORDER BY clause with LIMIT 10. Insert some records in the table using insert command. Display all records from the table using select statement. Here is the alternate query to select first 10 elements.
What is query to display even rows from the Employees table?
We use HR schema for showing the odd or even rows from employees table. Employees table has 107 rows and employee_id start from 100 value. We use filter on employee_id <= 110 to get only less output which simplify to show in following example. For Even Rows ( We use Mod function and rownum.
How show all rows in SQL?
Its very simple to achieve what you are asking for, all you need to do is the following: SELECT * FROM Patrons WHERE xtype = ‘U’; SELECT * – Means select all columns WHERE xtype = ‘U’ – Means where any row with the column xtype is equal to U.
What is MOD in SQL?
The MOD() function in MySQL is used to find the remainder of one number divided by another. The MOD() function returns the remainder of dividend divided by divisor. if the divisor is zero, it returns NULL.
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 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 I have multiple rows in one row in SQL?
STUFF Function in SQL Server
- 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.
What is upper in SQL query?
In SQL Server (Transact-SQL), the UPPER function converts all letters in the specified string to uppercase.
How do I exclude duplicate rows in SQL?
The go to solution for removing duplicate rows from your result sets is to include the distinct keyword in your select statement. It tells the query engine to remove duplicates to produce a result set in which every row is unique. The group by clause can also be used to remove duplicates.
What is Rowid in SQL?
A row ID is a value that uniquely identifies a row in a table. A column or a host variable can have a row ID data type. A ROWID column enables queries to be written that navigate directly to a row in the table because the column implicitly contains the location of the row. Each value in a ROWID column must be unique.
How show all columns and rows in SQL?
Using the asterisk operator * serves as a shortcut for selecting all the columns in the table. All rows will also be selected because this SELECT statement does not have a WHERE clause, to specify any filtering criteria.
How do I SELECT multiple rows in SQL?
SELECT * FROM users WHERE ( id IN (1,2,..,n) ); or, if you wish to limit to a list of records between id 20 and id 40, then you can easily write: SELECT * FROM users WHERE ( ( id >= 20 ) AND ( id <= 40 ) ); I hope this gives a better understanding.
Which SQL query selects all rows from table?
If you want to fetch all the fields available in the field, then you can use the following syntax.
- SELECT * FROM table_name;
- SQL> SELECT ID, NAME, SALARY FROM CUSTOMERS;
- SQL> SELECT * FROM CUSTOMERS;