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List the string operations supported by SQL?
1) Pattern matching Operation
2) Concatenation
3) Extracting character strings
4) Converting among uppercase and lower case letters.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
explain the mapping constraints
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
State the Steps of Object Design Object design is a very iterative process in which various classes, relationships among objects are added when you move from one level to
The users who use easy-to-use menu are called ? The users who use easy to use menu are called as Naïve users.
Question: One of the tasks a database management system must perform is to ensure that the data is still intact in the face of software and hardware failure. This task is known
lock and types of lock
Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
Let us first look into some of the important features of ER model. Entity relationship model is a high-level conceptual data model. It permits us to define the data invo
client server architeutre
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