The Application of Data Session in Data Query Among Multi-Tables
LI Meng-qing · Computer Knowledge and Technology · 2007
The purpose of the building of the temporary relationship between tables is that the record pointer of the child table moves correspondingly when the record pointer of the parent table moves so that people can browse the data in different tables at the same time. This paper first introduces in brief the basic conceptions of relationship between tables, data session and temporary relationship, and then it expounds by an example the steps and methods of how to build the relationship and carry out data query among tables.