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InterviewSolution
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What Is Parent Child Relationship? |
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Answer» To MAINTAIN parent child RELATIONSHIP if the parent table CONTAINS one key FIELD the child table should contain the same key field and one additional key. In parent child relationship we should have a relation between two tables ex: if “A” is the parent table with “x” as a key and “B” is ANOTHER table then “B” should have “x” as a key with another key “y”, then “B” is the child table of for table “A”. To maintain parent child relationship if the parent table contains one key field the child table should contain the same key field and one additional key. In parent child relationship we should have a relation between two tables ex: if “A” is the parent table with “x” as a key and “B” is another table then “B” should have “x” as a key with another key “y”, then “B” is the child table of for table “A”. |
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