Validating with jscript from database
Server side validation is performed by a web server, after input has been sent to the server.
Client side validation is performed by a web browser, before input is sent to a web server.
An email address must contain at least a ‘@’ sign and a dot (.).
Also, the ‘@’ must not be the first character of the email address, and the last dot must at least be one character after the ‘@’ sign.
In the above form, we are calling validate() to validate data when onsubmit event is occurring.
A validation rule is one way to restrict input in a table field or a control (such as a text box) on a form.It is important to validate the form submitted by the user because it can have inappropriate values. Java Script provides facility to validate the form on the client-side so data processing will be faster than server-side validation.Most of the web developers prefer Java Script form validation.Restrictions on types of characters to be entered in a field may be easier to do with an Input Mask.For example, a date field might have a validation rule that disallows values in the past. Record Validation Rule You can use a record validation rule to specify a condition that all valid records must satisfy.
Access provides a number of ways to restrict input: You can use these methods of validating data alone or in combination with each other.