全文索引工作收集

SET QUOTED_IDENTIFIER ON 
GO
SET ANSI_NULLS ON 
GO

--通过歌名进行全文索引-搜索歌曲
--xiaopin
--2011-08-15
ALTER     procedure p_show_infokey_bysongname
@key varchar(128) ='',
@page int = 1,
@pagesize int = 10,
@total int = -1 output
as

set nocount on
set transaction isolation level read uncommitted
set xact_abort on

set @key=rtrim(ltrim(@key))

declare @upperbound int
declare @lowerbound int
declare @sql nvarchar(2048)
declare @where nvarchar(2048)
declare @searchid int
declare @searchkey varchar(256)
declare @searchcount int

set @upperbound = @pagesize * @page
set @lowerbound = @pagesize * ( @page - 1 )

set @searchid=isnull((select searchid from t_search where searchkey=''+@key+''),0)

if @searchid=0
begin
    insert into t_search(searchkey)values(@key)
    set @searchid=@@identity

    set @searchkey = '"*' + @key + '*"'
    insert into t_search_index(searchid,infoid,sizeid,userid,totaldown,normid) select top 1500 @searchid,infoid,sizeid,userid,totaldown,normid from t_info where contains(title,@searchkey) order by infoid desc
end

if @total <= 0
begin
    set @searchcount=isnull((select count(1) from t_search_index where searchid = @searchid),0)

    if( @searchcount = 0)
    begin
        delete from t_search where searchid = @searchid
        delete from t_search_index where searchid = @searchid
    end
end

set @where=' where searchid='+convert(varchar,@searchid)

exec P_SplitPageOneSql_search 't_search_index',@pagesize,@page,'b.totaldown desc,b.rid asc','b.totaldown asc,b.rid desc','b.totaldown,b.rid','rid',1,@where,'a.infoid',@total output

GO
SET QUOTED_IDENTIFIER OFF 
GO
SET ANSI_NULLS ON 
GO

SET QUOTED_IDENTIFIER ON 
GO
SET ANSI_NULLS ON 
GO

ALTER                               procedure P_SplitPageOneSql_search  
@tablename varchar(32),  
@pagesize int,   --页面大小  
@pagepos int,   --第几页  
@orderby  varchar(64),    --排序顺序,多个则用","分隔 加上前缀b.  
@orderby2 varchar(64),   --排序顺序的反向排序,多个则用","分隔 加上前缀b.  
@orderbyclause varchar(64), --排序字段(不包括desc ,asc等),以","分隔  加上前缀b.  
@keyname varchar(32),   --主键  
@keyinorder tinyint ,       --主键是否在排序字段中 1:在  0:不在  
@whereclause varchar(1024) , --where条件  
@showclause varchar(1024),  --显示的字段 加上前缀a.  --注意如果显示字段过长的话,需要再加长  
@totalcount int output  --是否需要统计总数 -1:要统计 其它不统计  
as  
  
set nocount on  
set transaction isolation level read uncommitted  
declare @sql nvarchar(1024) --注意如果显示字段过长的话,需要再加长  
declare @showrows smallint  --显示的行数(可能在最后一页,这样显示的记录数就要小于@pagesize  
declare @top9clause nvarchar(1024)  
if @keyinorder = 0  
    set @top9clause = @orderbyclause + ',b.' + @keyname  
else  
    set @top9clause = @orderbyclause   
if @whereclause is null  
    set @whereclause = ''  
  
if @totalcount <= 0  
begin  
    set @sql = 'set @totalcount = (select count(1) from ' + @tablename + ' ' + @whereclause +')'  
    exec sp_executesql @sql,N'@totalcount int output',@totalcount output  
end  
  
--要处理好翻到最后一页且不能满页时的情况  
if @totalcount > @pagesize * (@pagepos -1) and @totalcount < @pagesize * @pagepos   
   set @showrows = @totalcount - @pagesize * (@pagepos -1)  
else if  @totalcount >= @pagesize * @pagepos   
   set @showrows = @pagesize  
else  
   return   
  
set @sql = 'select '   +   @showclause +',other.* from (  
select top  ' + convert(varchar, @showrows)  + '  ' + @top9clause +  ' from(  
select top ' + convert(varchar,@pagesize * @pagepos) + ' '   
 + @top9clause +  '  from  
  ' + @tablename  + '  b ' +  @whereclause  +' order by ' + @orderby + ') b   
order by  '  + @orderby2 + ') b inner join ' + @tablename  + '  a on a.' + @keyname +' = b.' + @keyname +'   
 inner join t_info other on a.infoid = other.infoid  
order by ' + @orderby  
  
exec sp_executesql @sql  

GO
SET QUOTED_IDENTIFIER OFF 
GO
SET ANSI_NULLS ON 
GO