I'm using Drupal 7. After enabling the Statistics module, I see, under each node, how many times it has been read (e.g. "4 reads").
I need to knew where this views (e.g. "4 reads") save in table in database ?
I need to know where is saved to using it in my SQL
This data is stored in database table node_counter, field totalcount.
You can use function statistics_get() to get the total number of times the node has been viewed.
Example:
// the node nid
$nid = 1;
// get the node statistics
$node_stats = statistics_get($nid);
// get the count of the node reads
$node_reads = $node_stats['totalcount'];
Or, if you need to access it directly with SQL code,
SELECT totalcount FROM node_counter WHERE nid = 1;