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different width of foregin key will affect the performance???

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markco

markco

IS-IT--Management
Jan 8, 2001
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HK
If a field in a table (eg. transactionno VARCHAR2(14)) which is foreign key of several tables, let say (table1: receiptno VARCHAR2(10), table2: creditnoteno VARCHAR2(14)...), then is it influence the performance when the linkage with transactionno AND the receiptno since the structure length is difference?
Thanks. Markco Wong
 
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