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List the string operations supported by SQL?
1) Pattern matching Operation
2) Concatenation
3) Extracting character strings
4) Converting among uppercase and lower case letters.
I am doing research in this area, especially in sime join and join efficacy when several relations have been queried. Relations located in different sites. I need something like n
i want notes on this topic
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Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
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