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哪位大哥能帮忙解释一下下面这段代码,刚开始学习,有的地方看不懂.
SELECT "COMPANY".FDISPLAYNAME_L2 "COMPANY_NAME"
, "VOUCHERTYPE".FName_l2 "VOUCHERTYPE.NAME"
, "VOUCHER".FBookedDate "BOOKEDDATE"
, "VOUCHER".FBizDate "BIZDATE"
, "ASSISTRECORDS".FDescription "ENTRIES_DESCRIPTION"
, "ACCOUNT".FNumber "ACCOUNT_NUMBER"
, "ACCOUNT".FLongName_l2 "ACCOUNT_LONGNAME"
, "CURRENCY".FName_l2 "CURRENCY.NAME"
-- ,"ASSGRP".*
,"ASSGRP".fdisplaynamegroup_l2 "david1"
,"ASSGRP".fdisplaynamegroup_l3 "david2"
,"ENTRIES".Fmactrlamount "famount"
FROM T_GL_Voucher "VOUCHER"
LEFT OUTER JOIN T_BD_VoucherTypes "VOUCHERTYPE"
ON "VOUCHER".FVoucherTypeID = "VOUCHERTYPE".FID
INNER JOIN T_GL_VoucherEntry "ENTRIES"
ON "VOUCHER".FID = "ENTRIES".FBillID
LEFT OUTER JOIN T_ORG_BaseUnit "COMPANY"
ON "VOUCHER".FCompanyID = "COMPANY".FID
LEFT OUTER JOIN T_BD_Currency "CURRENCY"
ON "ENTRIES".FCurrencyID = "CURRENCY".FID
LEFT OUTER JOIN T_BD_AccountView "ACCOUNT"
ON "ENTRIES".FAccountID = "ACCOUNT".FID
LEFT OUTER JOIN T_GL_VoucherAssistRecord "ASSISTRECORDS"
ON "ENTRIES".FID = "ASSISTRECORDS".FEntryID
LEFT OUTER JOIN T_BD_AssistantHG "ASSGRP"
ON "ASSISTRECORDS".FAssGrpID = "ASSGRP".FID |
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