How can you Enforce Referential Integrity in snapshots ?

1 Answer

Answer :

Time the references to occur when master tables are not in use.
Peform the reference the manually immdiately locking the master
tables. We can join tables in snopshots by creating a complex
snapshots that will based on the master tables.

Related questions

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Last Answer : rential integrity constraints.

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Last Answer : Maintaining data integrity through a set of rules that restrict the values of one or more columns of the tables based on the values of primary key or unique key of the referenced table.

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Last Answer : UPDATE and DELETE Restrict - A referential integrity rule that disallows the update or deletion of referenced data. DELETE Cascade - When a referenced row is deleted all associated dependent rows are deleted.

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Last Answer : A simple snapshot is based on a query that does not contains GROUP BY clauses, CONNECT BY clauses, JOINs, sub-query or snashot of operations. - A complex snapshots contain atleast any one of the above.

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Last Answer : ? Yes. In the CHECK condition for a column of a table, we can reference some other column of the same table and thus enforce self referential integrity.

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Last Answer : A rule defined on a column (or set of columns) in one table that allows the insert or update of a row only if the value for the column or set of columns (the dependent value) matches a ... data and the action to be performed on dependent data as a result of any action on referenced data.

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Description : How many Integrity Rules are there and what are they

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