数字转成字符串时，如何确保没有逗号？
public static String noComma(long number) { NumberFormat format = NumberFormat.getInstance(Locale.US); format.setGroupingUsed(false); return format.format(number); }
Month: July 2011
记住这个术语： ETL
记住这个术语，不要老记成DTL, DSL之类的 WIKI: ==================================================================== Extract, transform and load (ETL) is a process in database usage and especially in data warehousing that involves: * Extracting data from outside sources * Transforming it to fit operational needs (which can include quality levels) * Loading it into the end target (database or data warehouse)