Question: What is the data limit for a T-Mobile Internet Basic plan?
SQL: SELECT "Data limit/ GB" FROM "2-12837399-1" WHERE "Company" = 'T-Mobile' AND "Plan name" = 'Internet Basic';

Question: What is the data limit for Vodafone?
SQL: SELECT "Data limit/ GB" FROM "2-12837399-1" WHERE "Company" = 'Vodafone';

Question: What plan has monthly prices of 300, 500, 750, 1000?
SQL: SELECT "Plan name" FROM "2-12837399-1" 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 "2-12837399-1" 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 "2-12837399-1" WHERE "Technology" = '3G' AND "Plan name" = 'Internet Basic';