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How can you Start MySQL Server?
To start the mysql program type it is name in the command- line prompt. After starting mysql program just display
A welcome letter using the following Syntax:
% mysql
Welcome to the MySQL monitor. Commands end with; or \g.
MySQL connection id:18427 to server version: 3.23.51-log
Type 'help;' or '\h' for help.Type '\c' to clear the buffer-mysql>
Define data conversion? Helpful to load data into temporary staging tables. Then can write SQL code to do much of data processing. SQL code is simpler and faster to write than
Sparse and Dense Indexes These indexes in principle are the similar as that of indexes used at the back of the book. The key facts of the indexes are: They are arranged
What is data block? Data Block - In oracle the data blocks are referred to as tablespaces. A tablespace is an fields of disk consisting of one or more disk files. A tablespace
Saving Derived Attributes to Avoid Re-computation As discussed, "redundancy means duplication of exact data". But, if multiple copies of same data are present in the system,
Question 1 Discuss about second normal form and third normal form Question 2 Write short note on 1) Data Manipulation Language 2) Data Definition La
Some disadvantages of File Oriented System ?
Create centralized relational database using bottom up method. (a) Recognize a single un-normalized relation for the above scenario. (b) Recognize the primary key for
Define- relational algebra. The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relati
Explain the structure of well formed formulae in relational calculus. Ans: a. An atom is a formula b. If P1 is a formula, after that so are ¬P1 and (P1) c. If P1 and P2 a
Define Database layer? The database layer defines the data formats used in the database.
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