troubleshooting Question

Update Query with Criteria

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kay soo asked on
Microsoft AccessSQL
4 Comments1 Solution83 ViewsLast Modified:
Wonder anyone can provide the Access Update Query for the following solution:
Two Tables Table1and Table2 are  INNER JOIN on ClientID And PaymentMonthYear,  Table1 is used for capturing Client's monthly payment made, Table2 is a reference Table to update the monthly supposed payment amount into one of the field of Table1 to determine if full payment made. Table1's Field [SupposedPayment] is update via query from Table2's [SupposedPayment].
But sometimes Clients made multiple payment within a single month, like to hv an update query to output as following:

TABLE2 (Reference Table)
ClienID           PaymentMonthYear              SupposedPayment
1149A                       Jan 2019                                $500.00
1523B                       Jan 2019                                 $300.00
1662C                       Jan 2019                                 $400.00
1888K                       Jan 2019                                 $100.00
1212B                       Jan 2019                                 $400.00


'Output results after upate

                                    TABLE1                                                                                                                                                
ClientID           PaymentMonthYear        PaymentMade       SupposedPayment                                              
1149A                         Jan 2019                      $250.00                       $500.00                                                          
1149A                         Jan 2019                      $100.00                                                                                                
1149A                         Jan 2019                      $  50.00                                                                                              
1523B                         Jan 2019                      $200.00                       $300.00                                                          
1662C                         Jan 2019                      $1000.00                     $400.00                                                          
1888K                         Jan 2019                      $100.00                       $100.00
1888k                         Jan 2019                      $150.00  
1212B                        Jan 2019                       $400.00                       $400.00
                         
'End

i like to hv the query to update only once to the [SupposedPayment] in Table1 if there's multiple payments within the same month from a single Client (e.g. ClientID 1149A, 1888K), criteria is to update only to a single record if there's multiple entries by a single Client within the same month thx.
ASKER CERTIFIED SOLUTION
kay soo

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