Skip to content

2nd June 2021

Computer Science⚑

GNULinux⚑

mdadm⚑

  • New: Extend RAID0.

PostgreSQL⚑

  • New: Stop/kill a process.

  • New: NULLIF function.

    The NULLIF(value1, value2) function returns a null value if value1 equals value2; otherwise it returns value1.

    It can be useful for avoiding divisions by 0 (e.g. set value2 to 0).

  • New: Numeric data types reference.

  • New: Add column.
  • New: Concat_ws.

  • New: Window functions.

    Window functions allow to perform the calculation across a set of rows related to the current row.

  • New: UPDATE from subquery.

Other⚑

  • New: UPDATE.

    To update the values of some columns, use UPDATE.