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What makes a phrase valid in full text search?
In full-text search, a word (or token) is a string whose boundaries are identified by appropriate word breakers, following the linguistic rules of the specified language. A valid phrase consists of multiple words, with or without any punctuation marks between them.
How to query with full text search in SQL Server?
USE AdventureWorks2012 GO SELECT KEY_TBL.RANK, FT_TBL.Description FROM Production.ProductDescription AS FT_TBL INNER JOIN FREETEXTTABLE (Production.ProductDescription, Description, ‘perfect all-around bike’) AS KEY_TBL ON FT_TBL.ProductDescriptionID = KEY_TBL. [KEY] ORDER BY KEY_TBL.RANK DESC GO
Which is the best predicate for a full text query?
The following info helps you to choose the best predicate or function for your query: Usage. Use the full-text predicates CONTAINS and FREETEXT in the WHERE or HAVING clause of a SELECT statement. Results. The CONTAINS and FREETEXT predicates return a TRUE or FALSE value that indicates whether a given row matches the full-text query.
When to use an asterisk in full text search?
All text that matches the text specified before the asterisk (*) is returned. If the text and asterisk are not delimited by double quotation marks, as in CONTAINS (DESCRIPTION, ‘top*’), full-text search does not consider the asterisk to be a wildcard..
When to use a four part predicate in freetext?
You can use a four-part name in the CONTAINS or FREETEXT predicate to query full-text indexed columns of the target tables on a linked server. To prepare a remote server to receive full-text queries, create a full-text index on the target tables and columns on the remote server and then add the remote server as a linked server.
How does a full text query work in SQL?
Full text queries perform searches against text data, in full-text indexes by operating on words and phrases based on 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.
How many columns can a full text index contain?
Only one full-text index is allowed per table and this index can contain up to 1024 columns. The full-text index includes one or more character-based columns in the table.