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What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
What is object containment? References among objects can be used to model dissimilar real-world concepts.
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
Differance between Unordered and ordered file ? Unordered file do no has any sequence although ordered file has arranged in a few sequence and data are assigned in ordered form
What is the difference between a key and a superkey? Key - A key a single attribute or a combination of two or more attributes of an entity set which is used to identify one
What is Primary key? Primary Key - Primary key is one of the candidate keys which uniquely identifies each row in the relation.
What should be declared explicitly in the corresponding ABAP/4 Statements to access internal tables without header lines & why? Work Area. This is needed as the Work Area is
Which model is record based logical model? Network Modelis basically known as record based logical model.
vertical fragmentation
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