[英]MYSQL execute stored procedure in if statement or run complicated SET statement
我有一個表格,偶爾導入時會在其中切換貸方和借方-因此,我有一些代碼來設置變量,然后在匹配時進行交換,但是我無法在IF語句中運行它試圖將其放入存儲過程中,但也無法在IF語句中運行該存儲過程。 你會推薦什么? 參見下面的代碼。 謝謝
set @TotalCr = (select max(TotalCredit) from mbs_headers);
If (@TotalCr = (select sum(PDebit) from mbs_details) and @TotalCr =! (select sum(PCredit) from mbs_details))
then UPDATE mbs_detailstest SET PCredit=@tmp:=PCredit, PCredit=PDebit, PDebit=@tmp
else
end;
要么
set @TotalCr = (select max(TotalCredit) from mbs_headers);
If (@TotalCr = (select sum(PDebit) from mbs_details) and @TotalCr =! (select sum(PCredit) from mbs_details))
then exec TestSwapProc
else
end;
與僅包含的TestSwapProc
UPDATE mbs_detailstest SET PCredit=@tmp:=PCredit, PCredit=PDebit, PDebit=@tmp
樣本數據-表格:詳細信息
Name, Credit, Debit
Mike, 100, 20
Mike, 10, 0
表:標題
name, totalcredits, totaldebits
Mike, 20, 110
我需要切換Details表以反映真實值,因為有時它會以錯誤的方式插入所需的結果:
表:詳細信息
Name, Credits, Debits
Mike, 20, 100
Mike, 0, 10
標頭表保持不變,因為它總是正確的
您可以執行以下操作:
declare v_total decimal(10,2);
declare v_debit decimal(10,2);
declare v_credit decimal(10,2);
select max(TotalCredit) into v_total
from mbs_headers;
select sum(PDebit), sum(PCredit) into v_debit, v_credit
from mbs_details;
If (v_total = v_debit and v_total != v_credit) then
UPDATE mbs_detailstest
SET PCredit=v_debit, PDebit=v_credit;
end if;
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