Redis

Redis SCRIPT EXISTS command returns information about the existence of the scripts in the script cache. This command accepts one or more SHA1 digests and returns a list of ones or zeros…

Redis EVALSHA command evaluates a script cached on the server side by its SHA1 digest. Scripts are cached on the server side using the SCRIPT LOAD command. The command is otherwise identical…

Redis EVAL command is used to evaluate scripts using the Lua interpreter. The first argument of EVAL is a Lua 5.1 script. The script does not need to define a Lua function…

Redis scripting is used to evaluate scripts using the Lua interpreter. It is built into Redis starting from version 2.6.0. The command used for scripting is EVAL command. Syntax Following is the…

Redis WATCH command marks the given keys to be watched for conditional execution of a transaction. Return Value Simple string reply − always OK. Syntax Following is the basic syntax of Redis WATCH command.…

Redis UNWATCH command flushes all the previously watched keys for a transaction. Return Value Simple string reply − always OK. Syntax Following is the basic syntax of Redis UNWATCH command. redis 127.0.0.1:6379> UNWATCH

Redis MULTI command marks the start of a transaction block. Subsequent commands will be queued for atomic execution using EXEC. Return Value Simple string reply − always OK. Syntax Following is the…

Redis EXEC command executes all previously queued commands in a transaction and restores the connection state to normal. Return Value Array reply, each element being the reply to each of the commands…

Redis DISCARD command flushes all previously queued commands in a transaction and restores the connection state to normal. Return Value String reply OK Syntax Basic syntax of redis DISCARD command is shown below: redis…

Redis transactions allow the execution of a group of commands in a single step. Following are the two properties of Transactions. All commands in a transaction are sequentially executed as…