共 3 篇文章
作者因工作需要处理千万级数据,最初直接导入数据库效率低下。文章复盘了处理过程:针对六千万条CSV数据导入MSSQL,采用BCP命令批量导入并注意编码问题;随后处理数据内嵌逗号导致的列错位,通过SQL进行列位移调整。
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