sql schema造句

It uses XML formats ( the SQL schema is self-generated ) for representation of queries, transformation and merging, making it all processable by scripts.
While some approaches try to extract the information from the structure inherent in the SQL schema ( analysing e . g . foreign keys ), others analyse the content and the values in the tables to create conceptual hierarchies ( e . g . a columns with few values are candidates for becoming categories ).
It's difficult to find sql schema in a sentence. 用sql schema造句挺难的