SQL Server 2008 FullText Search Query
I have added Full Text Search to my sql server 2008 express database and created an index catalog for two columns in a single table. So now, I have to rewrite one of my stored procedures but I have no idea where to begin. The following is my current SP that I need to convert to take advantage of the full text search capability:
ALTER PROCEDURE [dbo].[sp_page_GetPostsBySearchFront]
(
@Title nvarchar(256),
@Content nvarchar(MAX),
@startRowIndex INT,
@maximumRows INT
)
AS
BEGIN
SELECT
RowNumber,
postId,
Title,
Content,
DateCreated,
IsPublished,
PublishOnDate,
Type,
MenuName
FROM
(
SELECT ROW_NUMBER() OVER (ORDER BY posts.postId DESC) AS R开发者_StackOverflow中文版owNumber,
posts.postId,
posts.Title,
posts.Content,
posts.DateCreated,
posts.IsPublished,
posts.PublishOnDate,
posts.Type,
posts.MenuName
FROM posts
GROUP BY
posts.postId,
posts.Title,
posts.Content,
posts.DateCreated,
posts.IsPublished,
posts.PublishOnDate,
posts.Type,
posts.MenuName
HAVING (posts.Title LIKE N'%' + @Title + N'%')
OR (posts.Content LIKE N'%' + @Content + N'%')
AND (posts.IsPublished = 1)
AND (posts.PublishOnDate <= GETDATE())
) as u
WHERE u.RowNumber > @startRowIndex
AND u.RowNumber <= (@startRowIndex + @maximumRows)
END
Could some one explain how I go about accomplishing this task? Do I use CONTAINS or FREETEXT and where do I add it. I'm just lost on this? Thank you!
Use:
WITH cte AS (
SELECT ROW_NUMBER() OVER (ORDER BY p.postId DESC) AS RowNumber,
p.postId,
p.Title,
p.Content,
p.DateCreated,
p.IsPublished,
p.PublishOnDate,
p.Type,
p.MenuName
FROM POSTS p
WHERE ( CONTAINS(p.title, @Title)
OR CONTAINS(p.content, @Content))
AND p.IsPublished = 1
AND p.PublishOnDate <= GETDATE() )
SELECT u.RowNumber,
u.postId,
u.Title,
u.Content,
u.DateCreated,
u.IsPublished,
u.PublishOnDate,
u.Type,
u.MenuName
FROM cte as u
WHERE u.RowNumber > @startRowIndex
AND u.RowNumber <= (@startRowIndex + @maximumRows)
Too bad you have different parameters for searching the title and content fields - could've been consolidated into a single CONTAINS if the parameters are the same value.
The documentation provides a nice breakdown of when they suggest Full Text Search (FTS) functionality. The majority of examples suggest CONTAINS/CONTAINSTABLE, and use FREETEXT/FREETEXTTABLE for:
- The inflectional forms are the different tenses of a verb or the singular and plural forms of a noun.
- A thesaurus defines user-specified synonyms for terms.
OK, Here is what I did to make it work. The reason why I was receiving the noise word message is because I did not set the parameter value length @search correctly. Once I realized that and changed it, it works fine.
ALTER PROCEDURE [dbo].[sp_page_GetPostsByFTS]
(
@search nvarchar(255),
@startRowIndex INT,
@maximumRows INT
)
AS
BEGIN
SELECT
RowNumber,
postId,
Title,
Content,
DateCreated,
IsPublished,
PublishOnDate,
Type,
MenuName
FROM
(
SELECT
ROW_NUMBER() OVER (ORDER BY posts.postId DESC) AS RowNumber,
posts.postId,
posts.Title,
posts.Content,
posts.DateCreated,
posts.IsPublished,
posts.PublishOnDate,
posts.Type,
posts.MenuName
FROM posts
WHERE FREETEXT((Title,Content),@search)
AND (posts.IsPublished = 1)
AND (posts.PublishOnDate <= GETDATE())
)
as u
WHERE u.RowNumber > @startRowIndex
AND u.RowNumber <= (@startRowIndex + @maximumRows)
END
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