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User error: This contains errors in the program (e.g., Logical errors) with errors made by online users of database. These types of errors can be avoided by applying some check situations in programs or by limiting the access rights of online users' example, read only. So only updating or insertion operation needs appropriate check routines that perform appropriate checks on the data being modified or entered. In case of an error, some prompts can be passed to user to enable him/her to accurate that error.
need to get answer for questions 3&4 on this page in part 1
How the time stamps are implemented Use the value of the system clock as the time stamp. That is a transaction's time stamp is equivalent to the value of the clock when the tra
Waterfall model is the linear model. The process is completed by step by step. We couldn't stop in between of the process. Prototype model: after get the model by low cost budget o
What is the main difference between read-only and update methods? A read-only method does not affect the values of a variable in an object, whereas an update method may alter t
#question. Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wave-fronts in front of the
What sorts of tables one can se in designing the hierarchy of a LDB? Tables, which are having Foreign Key relations.
Accessing information about permissions to all users- Object level permissions: With the use of data dictionary you can see the permissions to user. Let us get the table name fro
Represent the following scenarios with E-R diagrams drawn using the ER Assistant software. The diagrams should indicate cardinality and optionality of relationships. Transform each
Mention various steps required to draw an E-R Diagram. Draw an E-R Diagram for Student Information System. Mention all suitable assumptions to justify your answer.
System level permissions : With the use of data dictionary you can view them. Let us take the table name as user_sys_privs (used in oracle). DESCRIBE USER_SYS_PRI
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