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What is the main difference between a UNION statement and a UNION ALL statement? 1. A UNION statement eliminates duplicate rows; a UNION ALL statement includes duplicate rows. 2. A UNION statement can be used to combine any number of queries; a UNION ALL statement can be used to combine a maximum of two queries. 3. A UNION statement can only combine queries that have parallel fields in the SELECT list; a UNION ALL statement can combine queries with differing SELECT list structures. 4. A UNION statement cannot be used with aggregate functions; a UNION ALL statement can be used with aggregate functions. 5. There is no difference between the two statements; they are interchangeable.
2 8678Post New Saman Bank SQL PLSQL Interview Questions
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Saman Bank SQL PLSQL Interview Questions (1)
How do you find the source of data validation in excel?
I NEED A TICKETS IN FI FOR G/L A/P A/R ASSET W.H.T IN THOSE I NEED SUPORT ISUUS PLS
Give some example of master data in material management (mm).
What is Buffering Concept? When should a Table be buffered?
What is linq and entity framework?
What is fragmentation? Different types of fragmentation?
what is accounting cycle ?
What is a facade?
Does excel have auto increment?
How do you find the independent variable?
What is diffrent between Method and and function in c#
What does nav a mean in css?
We have a testing assignment that is time-driven. Do you think automated tests are the best solution?
When I enter a value, it appears with two decimal places. For example, when I enter 154 it shows up as 1.54. Whats wrong?
How long can you commit to work for us?
