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私は以下のクエリを継承しました。最初の左の結合で "--and"の意味を理解しようとしていますか？ 8.1を使用する'--and'はpostgresqlクエリで何を意味するのですか
私はオリジネーションの結果を制限する使命を帯びてきた>日付、最初はそれがすべてで働く理由を把握しようと...
select distribution_stop_information.customer_no,
distribution_line_items.item_number,
distribution_line_items.container_id,
distribution_line_items.item_description,
distribution_stop_information.customer_reference,
distribution_stop_information.bol_number, SUBSTRING(distribution_stop_information.bol_number,1,4) as ODDC,
SUBSTRING(distribution_stop_information.bol_number,9,4) as ODRT,
distribution_stop_information.branch_id,
distribution_stop_information.route_date,
(select count(innerDLI.item_number)-1 from distribution_line_items innerDLI where innerDLI.item_number = distribution_line_items.item_number) as RDLcount,
(select innerDLI.datetime_created from distribution_line_items innerDLI where innerDLI.item_number = distribution_line_items.item_number order by innerDLI.datetime_created asc limit 1) as Origination,
distribution_stop_information.route_code,
distribution_stop_information.stop_name,
distribution_stop_information.stop_address,
distribution_stop_information.stop_city,
distribution_stop_information.stop_state,
distribution_stop_information.stop_zip_postal_code,
distribution_stop_information.stop_signature,
CASE WHEN distribution_line_items.exception_code is not null
THEN distribution_line_items.exception_code
ELSE distribution_stop_information.stop_exception_code
END as ExceptionCode,
distribution_stop_information.signature_file_name,
distribution_stop_information.sign_bitmap_file_exists,
ScanR.item_was_scanned as ScanR,
ScanL.item_was_scanned as ScanL,
ScanD.item_was_scanned as ScanD
from distribution_stop_information
inner join distribution_line_items on distribution_line_items.unique_id_no = distribution_stop_information.unique_id_no
left join distribution_item_scans ScanR on
ScanR.item_sequence_no = distribution_line_items.item_sequence_no
and ScanR.stop_unique_id_no = distribution_stop_information.unique_id_no and ScanR.scan_type = 1
--and ScanR.scan_datetime between to_date(?, 'YYYY-MM-DD') and (to_date(?, 'YYYY-MM-DD') + interval '1 day')
left join distribution_item_scans ScanL on
ScanL.item_sequence_no = distribution_line_items.item_sequence_no
and ScanL.stop_unique_id_no = distribution_stop_information.unique_id_no and ScanL.scan_type = 2
and ScanL.scan_datetime between to_date(?, 'YYYY-MM-DD') and (to_date(?, 'YYYY-MM-DD') + interval '1 day')
left join distribution_item_scans ScanD on
ScanD.item_sequence_no = distribution_line_items.item_sequence_no
and ScanD.stop_unique_id_no = distribution_stop_information.unique_id_no and ScanD.scan_type = 9
and ScanD.scan_datetime between to_date(?, 'YYYY-MM-DD') and (to_date(?, 'YYYY-MM-DD') + interval '1 day')
where
distribution_stop_information.customer_no in ('90202')
and distribution_stop_information.route_date between (to_date(?, 'YYYY-MM-DD')) and (to_date(?, 'YYYY-MM-DD'))
and distribution_line_items.datetime_created between (to_date(?, 'YYYY-MM-DD') - interval '288 hours') and (to_date(?, 'YYYY-MM-DD') + interval '12 hours')
Ehhh ...インラインコメントです... –
https://www.postgresql.org/docs/current/static/sql-syntax-lexical.html#SQL-SYNTAX-COMMENTS –
well ... OK。私はそれらを一度も使用しておらず、 "postgresql - "でグーグルグーグルは何もプルアップしていませんでした。私はそれができるようになるとすぐに答えを受け入れます。 –