模拟类似于SQLSERVER查询分析器的功能，可在输入框中定义SQL语句，本程序可模拟SQL语句执行查询命令，在数据集记录总数一栏中显示执行结果，最上边的DBGrid控件中会显示数据内容列表，-Simulation is similar to the SQLSERVER query analyzer function, can be defined in the SQL statement in the input box, this program can simulate the execu