I disagree as I was running clustered sql server 6.5 and 7 in 1998 for hundreds of concurrent users doing millions of reads per hour on NT basically commodity boxes. Replaced it with Oracle for 100x cost and lost performance.
I think even back then you were usually better off with distributed databases running mysql or postgres over Oracle. Although people liked to think a giant Oracle db was better.
For others like me who might be skeptical to hear throughput in any metric other than seconds (and is used to large numbers in hours/days being used to inflate), I think millions per hour is actually quite high for 1998.
Assume that means 5_000_000/hour. 5M/hr => 83k/min => 1400/s. That is impressive for late 90s. I was generous on what "millions per hour" meant, but even if its 2.5M/hr that would be 700/s, which is still quite good.