What are the Data types of the external layer? 沧海

ACCP, Char, CLNT, CUKY, CURR, DATS, DESC, FLTP, INT1, INT2, INT4, LANG, LCHR, LRAW, NUMC, PREC, QUAN, RAW, TIMS, UNIT,VARC.

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原文地址：https://www.cnblogs.com/omygod/p/1327889.html