Create s.sql

Signed-off-by: MolfarUA <52976230+MolfarUA@users.noreply.github.com>

5 kyu/Count IP Addresses/s.sql

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+SELECT id, last::inet - first::inet as ips_between
+FROM ip_addresses;
+________________
+SELECT
+DISTINCT id,
+(d4+d3*256+d2*256*256+d1*256*256*256) as ips_between
+FROM
+(SELECT *,
+cast(split_part(last,'.',1) as bigint) - cast(split_part(first,'.',1) as bigint) as d1,
+cast(split_part(last,'.',2) as bigint) - cast(split_part(first,'.',2) as bigint) as d2,
+cast(split_part(last,'.',3) as bigint) - cast(split_part(first,'.',3) as bigint) as d3,
+cast(split_part(last,'.',4) as bigint) - cast(split_part(first,'.',4) as bigint) as d4
+FROM ip_addresses) as ip;
+________________
+SELECT id, last::inet - first::inet AS ips_between FROM ip_addresses ORDER BY id;