1.关联修改 #解决思路 UPDATE tb1,tb2 SET tb1.address=tb2.address WHERE tb1.name=tb2.name UPDATE car c,tmpcolorcode t SET c.color_code=t.color_code WHERE c.reg_no=t.reg_no; 2.long与datetime类型相互转换 #时间datetime转换为long格式 #时间long转换为datetime格式 ); # :: 3.在实际的处理过程中,需要除
stdio.h 头文件中,有以下内容(用内部行号解释): /* The opaque type of streams. This is the definition used elsewhere. */ typedef struct _IO_FILE FILE; ... #include <libio.h> ... /* Standard streams. */ extern struct _IO_FILE *stdin; /* Standard input stream. */ extern