为制定购买决策的依据。本文档 所述的 Oracle 产品的任何特性或功能的开发、发行和时间规划均由 Oracle 自行决定。 4/16/2017 版权所有 2015，Oracle 和/或其附属公司。保留所有权利。 3 MySQL 复制 MySQL 半同步 复制 Windows/ Solaris/ Clusterware 群集或 Oracle VM Group Replication 高可用性解决方案 4/16/2017 9 9 . 9 9 9 % 版权所有 2015，Oracle 和/或其附属公司。保留所有权利。 5 并不仅仅是可靠地存储数据 支持高可用性的各个层 数据的冗余访问路径 数据冗余存储 冗余应用服务器 数据路由 4/16/2017 版权所有 2015，Oracle 和/或其附属公司。保留所有权利。 6 并不仅仅是可靠地存储数据 支持高可用性的各个层 支持高可用性的各个层 数据的冗余访问路径 数据冗余存储 冗余应用服务器 数据路由 4/16/2017 版权所有 2015，Oracle 和/或其附属公司。保留所有权利。 7 • MySQL Replication • Shared Storage • Group Replication • MySQL Cluster 从数据库 • 会话线程：处理来自应用程序的查询 － 将 数据写入主数据库，将关联事件写入二进制

· · · · · · · · · · · · · · · 2420 13.2.9 Does TiDB have a function like the Flashback Query in Oracle? Does it support DDL?· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · translate function in Oracle The translate function replaces all occurrences of characters by other characters in a string. In TiDB, this function does not treat empty strings as NULL as Oracle does. User document TiDB server. 2.6.2.11 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as ORACLE and POSTGRESQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed

· · · · · · · · · · · · · · · 2530 13.2.9 Does TiDB have a function like the Flashback Query in Oracle? Does it support DDL?· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · server. 77 2.6.2.12 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as Oracle and PostgreSQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed later 7.x releases CentOS 7.3 or later 7.x releases Oracle Enterprise Linux 7.3 or later 7.x releases Ubuntu LTS 16.04 or later Note: • For Oracle Enterprise Linux, TiDB supports the Red Hat Compatible

2112 set 2112 database 2112 network base-vm 2112 network gp-virtual-etl-bar 2113 network gp-virtual-external 2113 network gp-virtual-internal 2113 vm 2113 vsphere 2114 VMware Greenplum 6 Documentation introduced in this release: The Greenplum Virtual Machine now provides a service running on the master VM that monitors the postmaster process and restarts the process if it fails. This improves the reliability enabled by default. The Greenplum Virtual Machine now provides a service running on each segment VM that monitors the segment process and restarts the process if it fails. This improves the reliability

introduced in this release: The Greenplum Virtual Machine now provides a service running on the master VM that monitors the postmaster process and restarts the process if it fails. This improves the reliability enabled by default. The Greenplum Virtual Machine now provides a service running on each segment VM that monitors the segment process and restarts the process if it fails. This improves the reliability gp_workfile_compression. When workfile compression is enabled, Greenplum Database uses Zstandard compression. The Oracle Compatibility Functions are now available in Greenplum Database as an extension, based on the PostgreSQL

· · · · · · · · · · · · · · · 2348 13.2.9 Does TiDB have a function like the Flashback Query in Oracle? Does it support DDL?· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · TiDB server. 2.6.2.11 SQL modes TiDB supports most SQL modes: • The compatibility modes, such as ORACLE and POSTGRESQL are parsed but ignored. Compatibility modes are deprecated in MySQL 5.7 and removed later 7.x releases CentOS 7.3 or later 7.x releases Oracle Enterprise Linux 7.3 or later 7.x releases Ubuntu LTS 16.04 or later Note: • For Oracle Enterprise Linux, TiDB supports the Red Hat Compatible

value changes, a table must have some unique key (primary key or unique index). Some databases (Oracle, DB2, PostgreSQL) support a special virtual unique column that DBeaver can use to save changes. geography points DBeaver User Guide 7.2. Page 69 of 281. PostgreSQL (PostGIS) MySQL H2GIS SAP HANA Oracle SQL Server Supported databases DBeaver User Guide 7.2. Page 70 of 281. DBeaver supports XML significant returned digit of a rounded result is to be calculated. To learn more, please refer to . Oracle documentation To change the data type format, change the value displayed in the area,save the

value changes, a table must have some unique key (primary key or unique index). Some databases (Oracle, DB2, PostgreSQL) support a special virtual unique column that DBeaver can use to save changes. longitude/latitude to geography points DBeaver User Guide 6.3. Page 69 of 274. PostgreSQL (PostGIS) MySQL Oracle SQL Server H2GIS Supported databases DBeaver User Guide 6.3. Page 70 of 274. DBeaver supports significant returned digit of a rounded result is to be calculated. To learn more, please refer to . Oracle documentation To change the data type format, change the value displayed in the area,save the

value changes, a table must have some unique key (primary key or unique index). Some databases (Oracle, DB2, PostgreSQL) support a special virtual unique column that DBeaver can use to save changes. longitude/latitude to geography points DBeaver User Guide 7.0. Page 69 of 277. PostgreSQL (PostGIS) MySQL Oracle SQL Server H2GIS Supported databases DBeaver User Guide 7.0. Page 70 of 277. DBeaver supports significant returned digit of a rounded result is to be calculated. To learn more, please refer to . Oracle documentation To change the data type format, change the value displayed in the area,save the