The video describes as primary key and foreign key used.It is used a unique key used in any column.If any column have same data then it give an error.Primary key not allow null,while foreign key allow null.There is rule you don't allow to set more than null value in same raws.Using Dock the application are create which is run in different size of windows size.
Then we create a application that is used for create a form which use for user to enter details.In code we put the dtabase connection code in load page.The connection code establish the connection.There is also need the data are store in the database or not.
In this video we can explain add,edit and delete records.There is more useful for retrieve and other operations are performed.From that record we can also generate reports and exports in PDF.We also create graph for comparison of records.The types of graph create as line chart,Pie charts,etc.
There is also describes how to insert data ,edit and delete data from same application page to database.There are also filter the data from webpage.There also create records repots from search operations.There is create more than one records store in same files.
Then we create a application that is used for create a form which use for user to enter details.In code we put the dtabase connection code in load page.The connection code establish the connection.There is also need the data are store in the database or not.
In this video we can explain add,edit and delete records.There is more useful for retrieve and other operations are performed.From that record we can also generate reports and exports in PDF.We also create graph for comparison of records.The types of graph create as line chart,Pie charts,etc.
There is also describes how to insert data ,edit and delete data from same application page to database.There are also filter the data from webpage.There also create records repots from search operations.There is create more than one records store in same files.
