To repair the index, it must be re-created with the ALTER INDEX… REBUILD command. for each index key. When the new index is completed, the original unusable index is dropped. How do you know if an index is unusable? Check unusable and not valid Index in Oracle Query will coverRead More →
The plaque control record (O’Leary index) appears to be a commonly used oral hygiene index for assessing oral health skills. … A new oral hygiene index was developed based on the concepts of the Periodontal Screening and Recording (PSR). The highest score obtained in each buccal and lingual sextant isRead More →
The test shows whether your bone marrow is making red blood cells at the correct rate. People who have hemolytic anemia usually have high reticulocyte counts because their bone marrow is working hard to replace the destroyed red blood cells. What is the meaning of haemolysis? Hemolysis: The destruction ofRead More →
A k-gram index maps a k-gram to a postings list of all possible vocabulary terms that contain it. … It is noteworthy that the postings list is sorted alphabetically. Spelling Correction. While creating the candidate list of possible corrected words, we can use the “k-gram overlap” to find the mostRead More →
The angle and wavelength at which the light enters a substance and the density of that substance determine how much the light is refracted. … When light passes from a more dense to a less dense substance, (for example passing from water into air), the light is refracted (or bent)Read More →
As a rule of thumb, every table should have at least one clustered index preferably on the column that is used for SELECTING records and contains unique values. The primary key column is an ideal candidate for a clustered index. Can a table have non clustered index without clustered index?Read More →
When you create a UNIQUE constraint, a unique nonclustered index is created to enforce a UNIQUE constraint by default. You can specify a unique clustered index if a clustered index on the table does not already exist. Can clustered index be not unique? Both clustered and nonclustered indexes can beRead More →
The number of indexes on a table is the most dominant factor for insert performance. The more indexes a table has, the slower the execution becomes. … For this reason it has to add the new entry to each and every index on that table. The number of indexes isRead More →
Index fragmentation won’t be effected in any way, the restore process restore the data pages exactly 1:1 as before; but file fragmentation cause by file growth will be reduced, because the restore creates the file in one piece. What does update statistics command do? Updating statistics ensures that queries compileRead More →
Estimative Index/EI is a planted aquarium fertilizing system based on routine high dosing of dry micro (M) and macro (NPK) nutrients. The underlying principle is to dose more nutrients weekly than the aquarium plants require. What is EI in planted tank? The Estimated Index Method (EI Method) is a DIYRead More →