Yes thats right, one field in many shapefiles. So what i need to do is to extract this field called Leistung from all the shapefiles and put it together in only one file, because i need to do further calculations with another program.
The aim is to avoid that i have thousands of shapefiles on my computer.
for example: if i do the calculation for one year, and the input values are given hourly i have 8760 output files, so i wanted one file with 8760 colums instead.
i hope this is more understandable.
I tried to draw a schematic maybe it helps to explain my problem!
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What license level do you have? If you have an ArcInfo license you could instead Append all of the tables together and use the Pivot Table tool to create the columns. The appended tables would each need a numeric field with field the name that you want. The value in the field would be the number of the output column you want for each table (i.e., the first hour table would have a value of 1, the seccond would have a 2, etc.). The only pain of the Pivot Table tool is that the number value is treated like a string, so 1 is followed by 10, by 100, by 1000, and then 11. That could be overcome by adding 10000 to all numbers, which would properly sort out as FIELD10001, FIELD10002, etc.
I expect you will have problems getting a table to work with 8760 columns. Shapefiles won't work with that many columns. I'm not sure what the limit is for the various geodatabases.