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Explain the components of Database System in details.
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
Q. State the Technique for converting a state diagram to code. i) Identify the major control path. Starting with first state, find the path from diagram that corresponds
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
i want help to complete my task
explain ER Modeling?
What is the full form of DDL? DDL is stand for Data Definition Language.
Problem 1. Create a PL/SQL program to insert data into student table and display the details of the student having Reg.No 1010 Writing a PL/SQL program to Insert data
Example : Search the name, department number and salary of employees drawing minimum salary in that department. SELECT ENAME, SAL, DEPTNO FROM EMP WHERE SAL IN (SELECT MI
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