Describe and contrast sql and qbe.
No Answer is Posted For this Question
Be the First to Post Answer
1.If we have a Salary coloumn in Staff entity with this description the salary must be monetary and >=$35450.00, how we can write it in into schemain SQL? 2. If we have Weight and Marks in Assessment entity and the Weight has the description of this it must be Non-zero percentage. And also the Marks attribute stores the maximum possible raw mark for assessment (e.g., 30), while Weight stores of the weight of this assessment for the paper as a whole (e.g., 10%). If Marks is not specified, then Weight is used for both. How we can convert this into schema in SQL????
How does a database partition work?
Enlist the advantages of normalizing database.
Where is database data stored?
Define database system.
Define sub-query.
what are the differences between network and hierarchical database model?
What is the use of RECORD option in EXP command ?
What's the difference between star and snow flake schema?
What are dml and ddl statements?
What is the difference between star flake and snow flake schema?
What are different relationships existing in database?
Oracle (3259)
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)