Analysis toolbox licensing

Toolset/Tool	ArcView	ArcEditor	ArcInfo
Extract toolset
Clip
Select
Split
Table Select
Overlay toolset
Erase
Identity
Intersect Some parameters are limited by license level -- see the tool reference page for more detail.
Spatial Join
Symmetrical Difference
Union Some parameters are limited by license level -- see the tool reference page for more detail.
Update
Proximity toolset
Buffer Some parameters are limited by license level -- see the tool reference page for more detail.
Create Thiessen Polygons
Generate Near Table
Multiple Ring Buffer
Near
Point Distance
Statistics toolset
Frequency
Summary Statistics