Database programming learning notes

xiaoxiao2021-03-06  111

1. The main deployment in adotable:

You can use a perceptual component (such as dblookUpComboBox) to create a relationship between the main and the side table (P158) DBLookUpComboBox has three important properties: listSource: The source of the list, that is, the DataSource component listfield: list option, must Specify the keyfield: index field, you must specify

Remember the last step, you must set the masterfields attribute of adotable, so that the two tables can be connected, generally two common

Same field

2. The main instrument in AdoQuery is in the AdoQuery component, there is no MASTERSOURCE attribute in the AdoQuery component and the masterfields attribute, so this component sets the main deputy mining no practical use.

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