mapping-with-R | simple mapping in R : georeferencing lat | Map library
kandi X-RAY | mapping-with-R Summary
kandi X-RAY | mapping-with-R Summary
Introduction to simple mapping in R: georeferencing lat/lon and choropleths. using simple features, leaflet, and tmap, ggmap
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QUESTION
I'm trying to perform a simple query and the result data is almost all null
.
I have this table structure
Table Registros
...ANSWER
Answered 2019-Jan-07 at 14:51As we discussed in comments, this is an issue due to duplicate column names in two tables. This is where the similar issue and solution could be found. But, it does not include "mapping by code" as you said. So it is not exact duplicate.
I suggest you change the names of ID
fields in your tables to avoid colliding them. Of-course, you should also change the name of your POCO properties and mappings accordingly.
If you cannot change the column names in table, change the POCO property name, and use the column alias in SQL query to match those new property names.
I hope this helps you.
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