alter table mytbl MODIFY column pv BIGINT REPLACE_IF_NOT_NULL NULL; ERROR 1064 (HY000): errCode = 2, detailMessage = Can not change aggregation type This operation is very common because there are too many restrictions with replace, the original data will be overwritten with a value of NUL...
最佳的时候给最佳的人民。 [translate] avigorous 正在翻译,请等待... [translate] a3. Remove strips not needed for the assay and replace them with labeled Null Strips, if necessary. 3. 去除为分析用试样没需要的小条并且用被标记的零位小条替换他们,如果需要。 [translate] ...