Table: internet_providers
Columns: downstream
upstream
bandwidth
price_tl
every_1_gb
max

Question: What is the upstream speed of the network that costs 39 tl?
SQL: SELECT "upstream" FROM internet_providers WHERE "price_tl" = '39 TL'

Question: How many upstream speeds are there for downstream of 20 mbit/s and bandwidth of 40 gb?
SQL: SELECT COUNT("upstream") FROM internet_providers WHERE "downstream" = '20 Mbit/s' AND "bandwidth" = '40 GB'

Question: What is the upstream speed that you get for 89 tl?
SQL: SELECT "upstream" FROM internet_providers WHERE "price_tl" = '89 TL'

Question: What is the bandwidth for downstream of 20 mbit/s for 69 tl?
SQL: SELECT "bandwidth" FROM internet_providers WHERE "downstream" = '20 Mbit/s' AND "price_tl" = '69 TL'