SQL ORDER BY Descending and ascending CommandThe results we get from a table we may have to display in an order. The result may be from highest to lowest or lowest to highest in a numeric field or from A to Z or Z to A in a text or varchar field. We may require a combination of this also. We can use ORDER BY sql command to manage the display of records. We will apply this sql command to our student table in MySQL database to control or manage our order of display.
Highest to lowest orderWe can apply this to our numeric field mark to display the list in order of lowest mark to highest mark by using the ASC command ( ascending command ) . Please note that by default all order by commands are in ascending order only. Here is the command to display the records in decending order ( from highest to lowest ) based on the mark field.
Here the total mark will be displayed in the order of highest to lowest and class will not be considered. To display the records in order of mark in a class, we have to use to field names in the order by clause. Here is the code to display the records in the order of class and then in the order of marks. This will give a highly use full way by displaying all the records in order of class and within the class in order of marks.
order by on a varchar fieldHere is the command to display the records in the order of class
Here the records are returned in the order by class from A to Z . We can reverse the order by specifying in our sql command to change the order to Descending that is from Z to A. We have to add desc to the ORDER BY clause. Here is the command to do that
How to give the option to the user to change the record display order ?
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