The Redis EXPIREAT command sets a timeout as a Unix timestamp on a given key. It works the same as the EXPIRE command, but with an absolute Unix timestamp instead of a time interval in seconds (which EXPIRE uses).
Redis PEXPIREAT Command Explained
The Redis PEXPIREAT command sets a timeout as a Unix timestamp on a given key in milliseconds. It works the same as the EXPIREAT command, except that it sets the timeout in milliseconds instead of seconds.
It’s also similar to the PEXPIRE command, but with an absolute Unix timestamp instead of a time interval.
Redis EXPIRE Command Explained
The Redis EXPIRE command sets a timeout on a given key in seconds. After the timeout has expired, the key will be deleted.
Redis also has a PEXPIRE command that works the same as EXPIRE, except that it returns the timeout in milliseconds instead of seconds.
A key with a timeout is said to be volatile in Redis terminology.
Redis STRLEN Command Explained
In Redis, the STRLEN command returns the length of the string stored at a given key.
Redis PSETEX Command Explained
The Redis PSETEX command sets a key to hold a given string value, and sets that key to time out after a given number of milliseconds.
Redis SETEX Command Explained
In Redis, the SETEX command sets a key to hold a given string value, and sets that key to time out after a given number of seconds.
How to Get the First Day of the Month in Oracle
Here’s an example of returning the first day of a given month in Oracle Database. We can return the first day of the current month, a previous or later month, or the first day of a month based on a specified date.