key value database redis

patterns.PrintR.set ('111',' One')PrintR.set ('122',' A')PrintR.set ('113',' -')PrintR.keys (pattern='11*')#The result of the output is [' 113 ', ' 111 '] because the key 122 does not match the 11*7. The move command is used to move the key of the current database to the given DB, select can set the current database a

-structured-storage-leveldb/ ][ http://www.acunu.com/2/post/2011/04/log-file-systems-and-ssds-made-for-each-other.html ][ http://leveldb.googlecode.com/svn/trunk/doc/benchmark.html ][ http://www.acunu.com/2/post/2011/08/benchmarking-leveldb.html ][ http://blog.creapptives.com/post/8330476086/leveldb-vs-kyoto-cabinet-my-findings ][http://highscalability.com/blog/2011/8/10/] leveldb-fast-and-lightweight-keyvalue-database-from-the-auth.html [Http://stac

smembers command that might block the server, traversing the elements contained in the collectionSscan names 0Hscan key cursor [match pattern] [count number] # instead of the Hgetall command that might block the server, traverse the hash containing the individual key-value pairsHscan Daiby::info 0Zscan key cursor [mat

the segmentation is not universal to the business, so the database expansion becomes stretched. Thus, the Key-value database came into being. Key-value database is as much as possible

contains several document objects, although it is generally said that a document object within the same collection has the same format definition, but this is not necessary, that is, MongoDB's data schema is free (schema-free, mode free, modeless). as an example, suppose we need to design a small database to store "student, address, subject, score" information, then the relational database is designed in 1

you to read Redis configuration-Slow log30. Teach you to read Redis configuration – Event notification31. Teach you to read Redis configuration – Advanced Configuration "What's Redis?" Redis is an open-source, Key-

SSDB is a high-performance NoSQL database that supports a wide range of data structures. It is used to replace Redis or store billions of List data with Redis. It has been applied by many well-known enterprises. We use SSDB to migrate keys in existing redis to SSDB to break the existing redis120G Storage Limit (of cour

persistence is not very good.Sqlite1. Acid Transaction2.0 Configuration – No installation and management configuration required3. A complete database stored in a single disk file4. Database files can be freely shared between machines of different byte order5. Support database size up to 2TB6. Small enough, roughly 30,000 lines C code, 250K7. Faster than some pop

SQL Server 2008 Database primary key self Insert display value A few days ago, when I was at work, I was in the process of deleting data from tables in the database, after the deletion, the data that was added did not get the ID value of the original data (the ID in the tab

Python traverses the database and obtains the key value This article will share with you how to use Python to traverse the database and obtain the key value, mainly through the for loop. for more information, see. Traverse the

SQL Server 2008 Database primary key self-increment insert display value A few days ago at work encountered in the deletion of the database table data, when deleted, the re-added data did not get the original data ID value (the table ID is the primary

Traverse the Redis database with a prefix_*-formatted key stored as Key-value and print its value. Traverse using scan because the keys prefix_* may cause Redis to block for a long tim