题解 | #查询表总行数#
查询表总行数
https://www.nowcoder.com/practice/c5df013faa764a57aee041f8a043c2c3
select count(user_id) as cnt from deliver_record;
选择一列的长度为行数
查询表总行数
https://www.nowcoder.com/practice/c5df013faa764a57aee041f8a043c2c3
select count(user_id) as cnt from deliver_record;
选择一列的长度为行数
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