Basic SQL syntax (another keywords that accompanies the SELECT command)
On the First tutorial Basic SQL Syntax i have write Generally keywords that accompanies the SELECT command. Here i write another keywords that we can use in SELECT command.
- LIMIT
This command is used to limit the results that returned from the SELECT command. - LIKE
This command is used to match the requested value from the database table.
Aggregate Functions :
- AVG()
This syntax is used to calculate the average amount of a particular column in a database. - COUNT()
This syntax use to count the number of records in a group of records. - MAX()
This syntax is used to find the greatest value in a particular column in a database. - MIN()
The opposite of MAX, this syntax is used to find the smallest value in a particular column in a database. - SUM()
This syntax is used to calculate the sum of all values that are in a field.
Here for the example :
SELECT * FROM your_table LIMIT 0, 10 //This will SHOW 10 row of your TABLE start FROM row 1 TO 10. SELECT * FROM your_table LIMIT 10, 10 //This will SHOW 10 row of your TABLE start FROM row 11 TO 20.
SELECT * FROM your_table WHERE your_column LIKE %'value'% //This will SHOW ALL row FROM your COLUMN that contain the value.
1 2 3 4 5 | SELECT AVG(your_column) FROM your_table SELECT COUNT(your_column) FROM your_table SELECT MAX(your_column) FROM your_table SELECT MIN(your_column) FROM your_table SELECT SUM(your_column) FROM your_table |