Materialized views are very popular in Oracle systems where performance is critical and complex SQL queries exist against large tables. Generally, we see materialized views used in two areas ...

In Oracle9i, if you specify REFRESH FAST for a single-table aggregate materialized view, you must have created a materialized view log for the underlying table, or the refresh command will fail.

TABLE=<'>ORACLE-table<'>; specifies the name of the ORACLE table or ORACLE view on which the access descriptor is based. This statement is required. The ORACLE-table-name argument can be up to 30 ...

SQL views evaluate the data in the tables underlying the view’s definition when they’re queried. So, the benefit of using SQL views is that they always return the latest data .

Introduction. The SQLite database is a wildly successful and ubiquitous software package that is mostly unknown to the larger IT community. Designed and coded by Dr. Richard Hipp, the third major ...

The indexes on a the tables of a large database make a huge difference in its performance and utility. Without an index, ... Enter the Oracle "ALTER INDEX" command, ...