what is the difference between relational calculus and
relational algebra ?
Answers were Sorted based on User's Feedback
Answer / divya
relational calculus is a declarative way to specify the queries,whereas relational algebra is a procedural way to specify the queries.
| Is This Answer Correct ? | 40 Yes | 4 No |
Answer / ajeet kr.sharma(weir)bharatpur
r.alg. is procedural lenguage while r.c. is non-procedural
lenguage.
| Is This Answer Correct ? | 26 Yes | 7 No |
Answer / megha aditya
relational algebra easy to manipulate then relational calculus..
modifications are easy in queries of relational algebra... then in relational calculus
| Is This Answer Correct ? | 7 Yes | 5 No |
Answer / shalinithakur
RC are formed WFFs where as RA does not form any formula
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / ravina
The query is in the form of different operators in relational algebra and in calculus queries is in the form of formula.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / parul
relational algebra is depend upon the order of operations
wheres
relational calculus does not depend upon the order of the operations
| Is This Answer Correct ? | 0 Yes | 0 No |
What is the relationship that exists inside in E-R diagram?
What is a Transformation?
please tell me the informatica telecom projects interview question? like if they ask about project explanation and the difficulties and the solutions taken to solve the issues for telecom projects,e.g i am workin for a vodafone project handlin postpaid section,pls tell me wat wud be the process if i work in this ? thanks
Two tables emp(empid,name,deptid,sal) and dept(deptid,deptname) are there.write a query which displays empname,corresponding deptname also display those employee names who donot belong to any dept.
Explain artificial key?
what is difference between delete and truncet ?
In TeraData We have 5 SQL queries, without using BTEQ how can we execute those queries?
Which is the best graph database?
What are the advantages of using database?
On startup, the transaction log of a database has filled and recovery has suspended, what can I do?
utility used to obtain inform regarding the optimizes choice of access strategy for SQL stmts A) LOAD B) REORG C) COPY D) EXPLAIN
Differentiate between unique key and foreign key?
Oracle (3253)
SQL Server (4518)
MS Access (429)
MySQL (1402)
Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)
DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)
Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)
Database Management (1411)
Databases AllOther (288)