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Related Flashcards
Cards In This Set
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Primary KeyForeign Key Unique KeySurrogate key
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Primary key uniquely identify a row. Unique key uniquely identify a record in the table and there can be multiple unique key.Foreign key creates a relationship between the parent and child table. Surrogate key is used in dimension modelling to create relationship between dimension & fact tables.
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Referential Integrity
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Referential integrity
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Constraints
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Primary KeyForeign keyDefaultCheckNot NullUnique Key
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Joins
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Left JoinRight JoinFull JoinInner JoinSelf Join
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Union vs Union All
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Combines Distinct row values vs combines all rows
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IndexClustered Index vs Non Clustered Index
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Index are used to retrieve the data faster. Clustered index creates a logical and physical order of the table. Non Clustered Index creates a logical order and a pointer to the table.
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Stored Procedure
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Asdf
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User Defined Function (UDF)
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Abcc
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View vs Materialized View
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Asdf
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Triggers
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Asdf
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Window Functions
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Asdf
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Name 10 System Functions
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Asdf
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What is subquery? Types of subquery?
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Sfsdfsd
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CTE
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CTE
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Temp Table
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Aasdfd
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