Table: czech_internet_plans
Columns: company
plan_name
technology
maximum_download_speed_kbps
data_limit_gb
monthly_price_incl_vat_czk

Question: What is the data limit for a T-Mobile internet basic plan?
SQL: SELECT "data_limit_gb" FROM czech_internet_plans WHERE "company" = 't-mobile' AND "plan_name" = 'internet basic'

Question: What is the data limit for vodafone?
SQL: SELECT "data_limit_gb" FROM czech_internet_plans WHERE "company" = 'vodafone'

Question: What plan has monthly prices of 300, 500, 750, 1000?
SQL: SELECT "plan_name" FROM czech_internet_plans WHERE "monthly_price_incl_vat_czk" = '300, 500, 750, 1000'

Question: What is the maximum download speed for the Internet premium 3G plan?
SQL: SELECT "maximum_download_speed_kbps" FROM czech_internet_plans WHERE "technology" = '3g' AND "plan_name" = 'internet premium'

Question: What is the maximum download speed for the Internet basic plan with 3G?
SQL: SELECT "maximum_download_speed_kbps" FROM czech_internet_plans WHERE "technology" = '3g' AND "plan_name" = 'internet basic'