chat data usage verizon

execution, the rest is not executed), However, this transactions provides the basic command package execution function (in case the server does not have a problem, you can ensure that a series of commands are executed together in sequence, there will be other client commands inserted to execute). Redis also provides a watch function, you can watch a key, and then execute transactions, in the process, if the value of this watched is modified, then this transactions will find and refuse to exec

lookup is a_end, since all values are in order, so it is possible to determine that 15 is on the A_start to A_end interval, that is, 15 is in a range. That's it.Of course, if you find a start, like we use 25, execute the following command:redis127.0.0.1:6379> zrangebyscore ranges (25011"B_start"The return result indicates that the next node is a start node, meaning that the value of 25 is not in any range between start and end.Of course, this example applies only to cases similar to the IP rang

be the student's school number, and SCO Re can be its test score so that when the data is inserted into the collection, it has been sorted naturally. In addition, you can use Sorted Sets to do with the weight of the queue, such as the ordinary message of the score 1, the important message of score 2, then the worker can choose to press the reverse of the score to get work tasks. Give priority to important tasks. 1. Elements with weights, such as the

always null hashmap, which is actually calculated by hashing the way to fast weight, which is also set to provide a judge whether a member is within the cause of the collection. Sort Set[HTML]View PlainCopy 5. Sorted Set Common commands: Zadd,zrange,zrem,zcard, etc. Usage scenarios: A condition is a weight, such as the number of times the top is sorted. The Zrevrange command can be used to get the top 100 users according to t