Answer:
Follows are the matching to this question:
Explanation:
While time-consuming or prone to errors mechanical adjustments to both the referential, databases could be configured with four measures to engine violations. The restricted action causes the insert, update, and removes to only be denied. Set Null to NULL sets the invalid external key, whereas Set Default to a specific core consideration specified in SQL sets a default foreign key. Its Cascade operation spreads the main changes in external keys.
Answer:
Use font colors that work well with your background.
Select font sizes that are appropriate for your delivery method.
Fonts should be appropriate for your audience.
Limit the number of fonts you use to three or four.
Hope this helps!
Answer:
The Update statement in the DML is used for changing existing data in a table.
Explanation:
Their are following Sql statement in the DML.
Insert
This SQL statement is used for inserting data into the table.
select
This SQL statement is used for retrieving data from database
update
This SQL statement is used for updating data in a table.
delete
This SQL statement is used for delete data from database .
The "UPDATE" SQL statement in DML is used for Modify the data in the existing table .
Following are the syntax of Update SQL query
Update tablename
set column1=value1,column2=value2............column N=valueN
Where condition;
Example :Suppose we have student table and (rollno,name,age and add) are the field for that table we have to change the address of rollno 105
Then we use update query like that
UPDATE STUDENT
SET add='kalam nagar'
where rollno=105;
Answer: Use the Design view
Explanation: Using a Design view to modify a report is the most flexible way to modify a report as opposed to a layout view which is another way to modify a report . The design view is flexible in the sense that it provides a more outlined structured view of your report that you can see the header and footer for the report. it also affords you the ability to control your report in terms of changing many properties, adjusting images, labels and editing text box, etc.
