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How does full text search work in SQL Server?
Full-text queries perform linguistic searches against text data in full-text indexes by operating on words and phrases based on the rules of a particular language such as English or Japanese. Full-text queries can include simple words and phrases or multiple forms of a word or phrase.
Does SQL Server Express support full text search?
UPDATE: It appears that, while SQL Server Express 2019 does not support full-text search, SQL Server Express 2019 with Advanced Services does.
What is full text indexing in SQL Server?
A full-text index is a special type of index that provides index access for full-text queries against character or binary column data. A full-text index breaks the column into tokens and these tokens make up the index data.
How is full text search in SQL Server?
SQL Server Full Text Search is based on tokenizing text into words. There is no smaller unit as a word, so the smallest things you can look for are words.
How to search for a word in SQL?
There is no smaller unit as a word, so the smallest things you can look for are words. You can use prefix searches to look for matches that start with certain characters, which is possible because word lists are kept in alphabetical order and all the Server has to do is scan through the list to find matches.
What is the purpose of full text search?
The information in full-text indexes is used by the Full-Text Engine to compile full-text queries that can quickly search a table for particular words or combinations of words.
How to use prefix search in SQL Server?
You can use prefix searches to look for matches that start with certain characters, which is possible because word lists are kept in alphabetical order and all the Server has to do is scan through the list to find matches. To do what you want a query with a LIKE ‘%book%’ clause would probably be just as fast (or slow).