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Control Files :The redo and control files logs support the rest of the architecture. Every database must have at least one control file, although you have more than one to guard against replace. The control file records the name of the dataset, the time and date it was prepared, the location of the redoes logs and database, and the synchronization information to confirm that all three groups of files are always in step. Each time you include a new redo log file or database to the database, the information is recorded in the control files.
Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
When are they useful? Justify with an example. The temporary tables are commonly used to support specialized rollups or exact application processing needs. Unlike a permanent t
What sorts of tables one can se in designing the hierarchy of a LDB? Tables, which are having Foreign Key relations.
Define average latency time. The average latency time of the disk is one-half the time for a full rotation of the disk.
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the
1 NF Normal Form The domain of attribute must add only atomic (simple, indivisible) values First normal form (Minimal Form or 1NF) is a normal form need in database normalizat
Copy Data from One Database to another Database Project Description: I am having two MySQL databases with same tables. I just need to copy one Data from one to another dat
What is a Name? A user-supplied name is used for identity. This form of identity is used for files in file systems. The user gives every file a name that uniquely identifies it
What is a candidate key? Minimal super keys are known as candidate keys.
Question (a) Visual Basic is governed by an event processor. Explain the meaning of this phrase. (b) Differentiate between an general procedure and event procedure. (c)
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