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221table 52002 "NYT Best Sellers"
{
Caption = 'Best Sellers Book';
DataClassification = CustomerContent;
fields
{
field(10; "List Name"; Text[250])
{
Caption = 'List Name';
DataClassification = CustomerContent;
}
field(20; "Line No."; BigInteger)
{
Caption = 'Line No.';
DataClassification = CustomerContent;
}
field(30; "Book Title"; Text[250])
{
Caption = 'Book Title';
DataClassification = CustomerContent;
}
field(40; "Book Description"; Text[2048])
{
Caption = 'Book Description';
DataClassification = CustomerContent;
}
field(50; "Book Author"; Text[250])
{
Caption = 'Book Author';
DataClassification = CustomerContent;
}
field(60; "Amazon URL"; Text[250])
{
Caption = 'Amazon URL';
DataClassification = CustomerContent;
ExtendedDatatype = URL;
}
}
keys
{
key(PK; "List Name", "Line No.")
{
Clustered = true;
}
}
trigger OnInsert()
begin
"Line No." := GetNextLineNo();
end;
procedure GetNextLineNo(): BigInteger
var
NYTBestSellers: Record "NYT Best Sellers";
begin
NYTBestSellers.SetRange("List Name", "List Name");
if NYTBestSellers.FindLast() then
exit(NYTBestSellers."Line No." 1);
exit(1);
end;
}
here setrange applied on same table and with same filed .Generally we use setrange to field data from two table with one field from table 1 and other filed from table 2 then we get mating value then we perform any operation like findfirst or findset and do operation on fields
but what is purpose of setrange on same table with same field ?
may be answer is easy but i don't know answer please experts can you guide me on this
thanks in advance....
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