2 lines
96 B
Plaintext
2 lines
96 B
Plaintext
πname (σ skill=='C' (people ⋈ skills)) ∩ π name (σ skill=='Python' (people ⋈ skills))
|
πname (σ skill=='C' (people ⋈ skills)) ∩ π name (σ skill=='Python' (people ⋈ skills))
|