Parallelizing Index Creation- Tables and Constraints
In large database environments in which you are attempting to create an index on a table that is populated with...
In large database environments in which you are attempting to create an index on a table that is populated with...
Reverse-key indexes are similar to B-tree indexes, except that the bytes of the index key are reversed when an index...
Bitmap indexes are recommended for columns with a relatively low degree of distinct values (low cardinality). You should not use...
When you create a B-tree index, you can also specify that the index be unique. Doing so ensures that non-NULL...
Multiple indexes can be on the same set of columns, but there must be something physically different about the index....
Oracle provides two types of views containing details about the structure of the indexes: • INDEX_STATS • DBA/ALL/USER_INDEXES The INDEX_STATS...
As described previously, when you think about creating tables, you must think about the corresponding index architecture. Creating the appropriate...
For critical applications, you must give some thought to how much space tables and indexes will consume and how fast...
If you do not work with large databases, then you do not need to worry about estimating the amount of...
After you have decided that you need to create an index, it is prudent to make a few foundational decisions...