- subschema DDL
- 子模式数据描述语言
English-Chinese computer dictionary (英汉计算机词汇大词典). 2013.
subschema DDL
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Data Base Task Group — The Data Base Task Group (DBTG) was a working group founded in 1965 (initially named the List Processing Task Force and later renamed to DBTG in 1967) by the Cobol Committee, formerly Programming Language Committee, of the Conference of Data… … Wikipedia
