hktama.blogg.se - How to clear data usage

We can use AND and OR operators to combine multiple conditions in the WHERE clause of a DELETE command. Deleting Specific Rows Based on Multiple Conditions More than one condition can be applied to the columns using a single query.

We can also delete multiple rows using a single query.įrom the table displayed above, we need to delete all the employee records with salary less than 60000:Īs we can see, four rows have been deleted.

The query above will result in the following:

From the table above, we need to delete the record of the employee with the name “Arun”:Īs we can see, “Name” is of character string data type, so the value being specified has to be enclosed in single inverted commas, without which the system will return a syntax error.

To check the result of the query in the table above, we’ll use the ‘SELECT *’ command:Īs we can see, one record has been deleted based on the condition specified in the WHERE clause.

From the table depicted above, to delete the employee’s record with “EmployeeID” equal to one, we’ll use the following query:.

Let’s take a sample “Employee_details” table Deleting Specific Rows Based on a Single Condition Let’s apply the concepts stated above to the rows of a table. Multiple conditions can be specified in the WHERE clause with the help of AND and OR operators.

NOTE: Extra caution needs to be taken with the WHERE clause as, without it, all the rows from the table will get deleted. There is an optional WHERE clause in which we can specify the condition according to which the rows should get deleted.The table from which we want to delete rows is specified in the table_name parameter of the DELETE FROM statement.Now, you can reset your data usage details whenever you want with just a click.The Syntax for Using the SQL Delete Command Reset Data Usage is really a useful lightweight tool which helps you do that. So, you can follow the steps in this post to reset data usage in Windows 10 very easily.

When you do that, it will automatically clear the current data usage details from your PC, as simple as that.Īfter resetting the data usage, the built-in feature of Windows 10 will start monitoring your data usage from current days onwards. To clear and reset Windows 10 data usage, click on the “Reset Data Usage” button. You will also see another button called “Data Usage which will allow you to see your current data usage details in your system settings. After that, a popup window will show up with a “Reset Data Usage” button. Now, you can launch the tool by double-clicking on the supported system file. Then you will see two different files inside the extracted folder where one is for 32-bits and the other for 64-bits system. You can get started by downloading “Reset Data Usage” tool and then extract the ZIP file.