Table: sdssigma_series
Columns: model
floating_point
decimal
byte_string
memory_map
max_memory_kwords

Question: When a Sigma 7 has a standard byte string, what is the value for the decimal?
SQL: SELECT "decimal" FROM sdssigma_series WHERE "byte_string" = 'standard' AND "model" = 'sigma 7'

Question: What is the value for the byte string when the memory map, decimal, and floating points are all standard and the max memory is smaller than 512?
SQL: SELECT "byte_string" FROM sdssigma_series WHERE "memory_map" = 'standard' AND "decimal" = 'standard' AND "floating_point" = 'standard' AND "max_memory_kwords" < 512

Question: What model has both a standard byte string and floating-point?
SQL: SELECT "model" FROM sdssigma_series WHERE "byte_string" = 'standard' AND "floating_point" = 'standard'

Question: On a Sigma 9 with a standard byte string and more than 128 max memory, what is the value of the memory map?
SQL: SELECT "memory_map" FROM sdssigma_series WHERE "byte_string" = 'standard' AND "max_memory_kwords" > 128 AND "model" = 'sigma 9'

Question: What is the decimal value when the memory map and byte string are standard, and the max memory is 512?
SQL: SELECT "decimal" FROM sdssigma_series WHERE "byte_string" = 'standard' AND "memory_map" = 'standard' AND "max_memory_kwords" = 512