What is the difference between star flake and snow flake schema?

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when we login sql editor using username and password then it says this error "could not resolve service name" then what can we do at client side.( here thing is tnsnames.ora file is ok till yesterday and worked well, but now it giving error.)

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Define data, entity, domain and referential integrity?

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What is drivermanager getconnection?

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what is the difference between delete and truncate?

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Explain the scenarios or situations under which progress database creates new index entry for a record?

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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????

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What is a database in computer?

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What is an image database?

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How a Store Procedure called with a cursor out parameter.?

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How is a database related to a table?

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What is tabular form?

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