如果sybase现有表定义没有为存储过程结果集的某一列指定适当的数据类型，就可能发生上述错误。
The above error can occur if the Sybase existing table definition did not specify the appropriate data type for a column of the stored procedure's result set.
换句话说，报表由一个表组成，这个表的行数和数据集的记录数相同，而列数与细节区域中定义的元素数相同。
In other word, the report consists of a table with as many rows as records in the dataset and as many columns as elements defined in the detail band.
如果fetch返回FALSE，则结果集为空，表明数据库表中还没有为catalog id值定义一个catalog表行。
If fetch returns FALSE, the result set is empty, thus a catalog table row for the catalog id value is not defined in the database table.
数据集对象可以定义和强化表之间的关系和列的约束，确保使用的商业规则对数据库没有缺陷。
Data set object can define the tie that expresses the relation between and kind with aggrandizement, ensure use commercial regulation does not have blemish to the database.
当定义一个记录集类时，需要指定与之相关的数据源、要使用的表和表的列。
When you define a recordset class, you specify the data source to associate it with, the table to use, and the columns of the table.
当定义一个记录集类时，需要指定与之相关的数据源、要使用的表和表的列。
When you define a recordset class, you specify the data source to associate it with, the table to use, and the columns of the table.
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