select

select < * | field1_name,field2_name,… | > from <cs_name.cl_name | statement> [clause]

如：

select * from <cs_name>.<cl_name>

select * from <cs_name>.<cl_name> where <comparison_expression>

select * from <cs_name>.<cl_name> <comparison_expression> order by <field1_name>

记录集。