ms访问 - 当我在vba中选择查询时，列为空

Question

When i write a select statement in vba to grab a column from a query its empty.

i have a query thats joined by multiple tables.

For example if I call select query.specialcolumn from query where query.id=5 I get a blank back. However, If I view it in the query table I see data for ID=5 with data.

Straight SQL in design mode also produces blanks. Only when I view the query as a whole, I can see data.

Any ideas?

Answer 1

Sounds like you used "query" as the name for your saved query. And query is a reserved word, see Problem names and reserved words in Access . It's hard predict when reserved words as object names will create problems. And I'm not confident that name is the problem here. But I would rule it out first before investigating anything else.

Enclose query in square brackets everywhere it's referenced in the SQL.

select [query].specialcolumn from [query] where [query].id=5

The square brackets will inform the db engine that query is a database object rather than the reserved word.