Ben Chuanlong Du's Blog

It is never too late to learn.

Tips on Anthem BCBS Insurance

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Check Whether A Care Provide Is In-network Or Not

  1. Click on "Find Care" on the Anthem portal and if a care provide populates then it in network.

  2. You may also use …

Latency Numbers Programmers Should Know

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Latency Operations
<=1ns
  • accessing CPU registers
  • CPU clock cycle
  • L1 cache
1-10ns
  • L2 cache
  • branch mispredict
10-100ns
  • L3 cache
  • mutex lock/unlock
  • main memory referencing
100-1000ns
  • trapping of system call
  • md5 …

SQL Equivalent

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

SQL translation is a great tool that transalte any SQL statement(s) to a different dialetc using the JOOQ Parser.

SQL Variant Code
List
databases [1 …