释义 |
record replacement 记录替换 An enhancement of the REPRO command which allows the user to merge two data sets and, when duplicate records are found (that is, the key values of two records are equal), the data record from the source data set replaces the data record in the target data set. REPRO命令的增强功能,它允许用户在发现重复记录(即是两个记录的键值相同)的情况下合并两个数据集,利用源数据集数据记录替换目标数据集中的数据记录。 |