58 lines
1.7 KiB
Transact-SQL
58 lines
1.7 KiB
Transact-SQL
use AnP
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if object_id(N'dbo.where_set', N'FN') is not null drop function dbo.where_set
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go
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create function dbo.where_set(
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@new_where varchar(max),
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@old_where varchar(max)
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) returns varchar(max) begin
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return (case when isnull(@new_where, '') = '' then isnull(@old_where, '') else (case when isnull(@old_where, '') = '' then @new_where else '(' + @new_where + ') and (' + @old_where + ')' end) end)
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end
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go
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if object_id(N'dbo.tables_list', N'P') is not null drop procedure dbo.tables_list
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go
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create procedure tables_list(
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@view varchar(max),
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@page integer,
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@items_per_page integer,
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@where varchar(max),
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@order_by varchar(max),
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@has_errors bit,
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@pages integer output,
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@items integer output,
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@results integer output
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) as begin
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declare @item_from integer
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declare @query nvarchar(max)
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declare @where_string varchar(max)
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set nocount on
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if @has_errors = 1
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set @where = dbo.where_set('0 = 1', @where)
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set @where_string = (case when isnull(@where, '') = '' then '' else ' where ' + @where end)
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set @query = N'select top 1 @subitems = count(1) from ' + @view + @where_string
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execute sp_executesql @query, N'@subitems integer output', @subitems = @items output
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set @pages = ceiling(@items / cast(@items_per_page as float))
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if @page < 1
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set @page = 1
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else if @pages > 0 and @page > @pages
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set @page = @pages
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set @query = (
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N'select * from ' + @view + @where_string +
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' order by ' + (case when isnull(@order_by, '') = '' then 'id asc' else @order_by end) +
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' offset ' + convert(varchar(14), (@page - 1) * @items_per_page) + ' rows fetch next ' + convert(varchar(14), @items_per_page) + ' rows only'
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)
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execute sp_executesql @query
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set @results = @@rowcount
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end
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go |