Databases
9 cheatsheets covering elasticsearch、es、kibana、shard、ilm and more
Elasticsearch Cheatsheet - Command Reference
一页速查 Elasticsearch 常用命令，覆盖集群健康检查、分片分配诊断、索引管理、文档 CRUD、搜索查询、聚合分析、慢查询排查与磁盘运维等场景。快速查找，直接复制。
MySQL Cheatsheet - MySQL Command Reference
One-page MySQL command reference covering database & table management, CRUD operations, index optimization, user privileges, backup & recovery, and replication. Quick lookup, copy and paste.
PostgreSQL Cheatsheet - PostgreSQL Command Reference
One-page PostgreSQL command reference covering connection & role management, database & table operations, query analysis, lock & transaction troubleshooting, backup & recovery, and streaming replication. Quick lookup, copy and paste.
Redis Cheatsheet - Redis Command Reference
One-page Redis command reference covering string & data structure operations, key space management, persistence configuration, memory troubleshooting, slow query monitoring, and cluster & replication. Quick lookup, copy and paste.
MongoDB Cheatsheet - MongoDB Command Reference
一页速查 MongoDB 数据库常用命令，覆盖数据库与集合管理、文档增删改查、查询操作符、索引优化、聚合管道、复制集与分片等场景。快速查找，直接复制。
Neo4j Cypher Cheatsheet - Neo4j Graph Database Command Reference
一页速查 Neo4j Cypher 查询语言常用命令，覆盖节点与关系创建、查询匹配、更新删除、聚合排序、索引约束、图算法等场景。快速查找，直接复制。
SQL JOIN Cheatsheet - SQL JOIN Query Reference
一页速查 SQL JOIN 连接查询，覆盖 INNER JOIN、LEFT/RIGHT/FULL JOIN、CROSS JOIN、自连接、USING 与自然连接、子查询与 EXISTS 等场景。快速查找，直接复制。
Knex.js Cheatsheet - Knex SQL Query Builder Reference
一页速查 Knex.js SQL 查询构建器常用命令，覆盖查询数据、插入更新删除、Join 关联、聚合分组、事务管理、Schema 构建、原始查询与调试等场景。快速查找，直接复制。
SQLite Cheatsheet - SQLite Database Command Reference
One-page SQLite database reference covering database creation, table operations, CRUD, indexes and constraints, transactions, import/export, and sqlite3 CLI. Find fast, copy directly.