| 41. | As brothers, they were able to harness a natural synergy, which was the primary key to their success.
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| 42. | In our table representing students on modules our primary key would now be firstName + lastName + moduleCode.
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| 43. | Each record must have a unique, primary key which determines where in a file that record is stored.
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| 44. | My question is : will I gain in performance speed with the primary key vs . no primary key?
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| 45. | My question is : will I gain in performance speed with the primary key vs . no primary key?
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| 46. | In a relational table the primary key is an ideal candidate for becoming the subject of the extracted triples.
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| 47. | The dbm manages associative arrays of arbitrary data by use of a single key ( a primary key ).
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| 48. | Due diligence should be applied when deciding on the immutability of primary key values during database and application design.
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| 49. | A key that can be used to uniquely identify a row in a table is called a primary key.
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| 50. | Some database systems even imply that values in primary key columns cannot be changed using the UPDATE SQL statement.
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