-查询排名 TOP N 的 SQL :docs-cn/5.overview/7.sql-engine-1/6.sql-optimization-guide/4.sql-optimization/2.monitor-sql-execution-performance/2.sql-performance-analysis-example/7.top-n-sql-statements.md
-OceanBase 的 MySQL 租户数据库对象 :docs-cn/7.developer-guide-1/1.preface-2/3.about-oceanbase-databases-2/3.mysql-based-tenant-database-objects-of-oceanbase-2.md
-关于OceanBase数据库的访问方法:
-关于 MySQL 客户端(mysql):docs-cn/7.developer-guide-1/1.preface-2/3.about-oceanbase-databases-2/4.about-oceanbase-database-access-methods-2/1.introduction-to-the-mysql-client-2.md
-查询中使用 CASE 函数 :docs-cn/7.developer-guide-1/2.connect-to-the-oceanbase-database/6.query-table-data/6.use-operators-and-functions-in-queries/9.use-the-case-function-in-a-query.md
-锁定查询结果 SELECT FOR UPDATE :docs-cn/7.developer-guide-1/2.connect-to-the-oceanbase-database/6.query-table-data/6.use-operators-and-functions-in-queries/10.lock-query-results-select-for-update.md
-查询排名 TOP N 的 SQL :docs-cn/12.sql-optimization-guide-1/4.sql-optimization-1/3.monitor-sql-execution-performance-1/4.sql-performance-analysis-example-1/7.top-n-sql-statements-1.md
-查询某段时间内执行时间排名 TOP N 的请求 :docs-cn/12.sql-optimization-guide-1/4.sql-optimization-1/3.monitor-sql-execution-performance-1/4.sql-performance-analysis-example-1/8.query-the-top-n-requests-with-the-most-execution-time-1.md