在Perl中执行while循环，并在其中获取行 [英] While loop in perl with fetch row in it

问题描述

my $dbHit= $DB->prepare($db_statement);
	$dbHit->execute();
	my $isHoliday = 'f';
	while (my @key=$dbHit->fetchrow()){	
		my $account			= padZero($key[0],9);
		my $tdate			= $key[1];
		my $code			= $key[3];
		my $item			= $key[2];
		my $default			= 'CMB';
}

问题是我正在执行返回零行的查询.我们在其中使用dbhit值.会发生什么. while循环是否执行.

The problem is I''m executing a query which return zero rows. We are using while with dbhit values in it. What will happen. Will the while loop execute or not.

推荐答案

dbHit =

dbHit=

DB -> prepare(

DB->prepare(

db_statement );

db_statement);

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