Sql 带有列表搜索键的 FREETEXTTABLE

Question

看起来 FREETEXTTABLE 只允许 searchkey 参数作为变量，像这样：

FROM FREETEXTTABLE(dbo.SampleTable, SampleColumn, @searchKey)

我有一个列表 searchKey 值，大约 50000 条记录，如何 "JOIN" searchKey table with FREETEXTTABLE

我用过 WHILE，但速度很慢

DECLARE @results as table(
    Key NVARCHAR(100),
    Rank INT
)

declare @numberOfRows INT = SELECT MAX(Id) FROM dbo.SearchKeyTable)
declare @step int = (SELECT MIN(Id) FROM dbo.SearchKeyTable)

WHILE (@step <= @numberOfRows)
BEGIN
    declare @searchKey NVARCHAR(500) = (Select TOP(1) '''' + REPLACE([Description], '''', '"')  + ''' OR ''' + REPLACE([itemname], '''', '"') + '''' From dbo.SearchKeyTable where id = @step ORDER BY Id)

    insert into @results
    select [Key] as KeyId, SUM([Rank]) as TotalRank FROM FREETEXTTABLE(dbo.SampleTable, SampleColumn, @searchKey) GROUP BY [Key]

    SET @step = @step + 1
END

select * from @results

我的dbo.SampleTabletable也很大，大概1600万记录

Answer 1

目前解决方案：用c#多线程代替WHILE

Sql 带有列表搜索键的 FREETEXTTABLE

Sql FREETEXTTABLE with list searchkey

sql-server

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freetexttable