v2.0
- 关于MogDB
- 快速入门
- 安装指南
- 管理指南
- 日常运维
- 主备管理
- MOT内存表管理
- 列存表管理
- 备份与恢复
- 数据导出导入
- 升级指南
- 常见故障处理指南
- 常见故障定位手段
- 常见故障定位案例
- core问题定位
- TPCC运行时,注入磁盘满故障,TPCC卡住的问题
- 备机处于need repair(WAL)状态问题
- 内存不足问题
- 服务启动失败
- 出现“Error:No space left on device”提示
- 在XFS文件系统中,使用du命令查询数据文件大小大于文件实际大小
- 在XFS文件系统中,出现文件损坏
- switchover操作时,主机降备卡住
- 磁盘空间达到阈值,数据库只读
- 分析查询语句长时间运行的问题
- 分析查询语句运行状态
- 强制结束指定的问题会话
- 分析查询语句是否被阻塞
- 分析查询效率异常降低的问题
- 执行 SQL 语句时,提示 Lock wait timeout
- VACUUM FULL一张表后,表文件大小无变化
- 执行修改表分区操作时报错
- 不同用户查询同表显示数据不同
- 修改索引时只调用索引名提示索引不存在
- 重建索引失败
- 业务运行时整数转换错
- 高并发报错”too many clients already”或无法创建线程
- btree 索引故障情况下应对策略
- 安全指南
- 性能优化指南
- 开发者指南
- 应用程序开发教程
- 开发规范
- 基于JDBC开发
- 概述
- JDBC包、驱动类和环境类
- 开发流程
- 加载驱动
- 连接数据库
- 连接数据库(以SSL方式)
- 执行SQL语句
- 处理结果集
- 关闭连接
- 示例:常用操作
- 示例:重新执行应用SQL
- 示例:通过本地文件导入导出数据
- 示例:从MY向MogDB进行数据迁移
- 示例:逻辑复制代码示例
- JDBC接口参考
- java.sql.Connection
- java.sql.CallableStatement
- java.sql.DatabaseMetaData
- java.sql.Driver
- java.sql.PreparedStatement
- java.sql.ResultSet
- java.sql.ResultSetMetaData
- java.sql.Statement
- javax.sql.ConnectionPoolDataSource
- javax.sql.DataSource
- javax.sql.PooledConnection
- javax.naming.Context
- javax.naming.spi.InitialContextFactory
- CopyManager
- 基于ODBC开发
- 基于libpq开发
- 调试
- 附录
- 存储过程
- 用户自定义函数
- 自治事务
- 逻辑复制
- Foreign Data Wrapper
- 物化视图
- AI特性
- 应用程序开发教程
- 参考指南
- 系统表及系统视图
- 系统表和系统视图概述
- 系统表
- GS_AUDITING_POLICY
- GS_AUDITING_POLICY_ACCESS
- GS_AUDITING_POLICY_FILTERS
- GS_AUDITING_POLICY_PRIVILEGES
- GS_CLIENT_GLOBAL_KEYS
- GS_CLIENT_GLOBAL_KEYS_ARGS
- GS_COLUMN_KEYS
- GS_COLUMN_KEYS_ARGS
- GS_ENCRYPTED_COLUMNS
- GS_MASKING_POLICY
- GS_MASKING_POLICY_ACTIONS
- GS_MASKING_POLICY_FILTERS
- GS_MATVIEW
- GS_MATVIEW_DEPENDENCY
- GS_OPT_MODEL
- GS_POLICY_LABEL
- GS_WLM_INSTANCE_HISTORY
- GS_WLM_OPERATOR_INFO
- GS_WLM_PLAN_ENCODING_TABLE
- GS_WLM_PLAN_OPERATOR_INFO
- GS_WLM_EC_OPERATOR_INFO
- PG_AGGREGATE
- PG_AM
- PG_AMOP
- PG_AMPROC
- PG_APP_WORKLOADGROUP_MAPPING
- PG_ATTRDEF
- PG_ATTRIBUTE
- PG_AUTHID
- PG_AUTH_HISTORY
- PG_AUTH_MEMBERS
- PG_CAST
- PG_CLASS
- PG_COLLATION
- PG_CONSTRAINT
- PG_CONVERSION
- PG_DATABASE
- PG_DB_ROLE_SETTING
- PG_DEFAULT_ACL
- PG_DEPEND
- PG_DESCRIPTION
- PG_DIRECTORY
- PG_ENUM
- PG_EXTENSION
- PG_EXTENSION_DATA_SOURCE
- PG_FOREIGN_DATA_WRAPPER
- PG_FOREIGN_SERVER
- PG_FOREIGN_TABLE
- PG_INDEX
- PG_INHERITS
- PG_JOB
- PG_JOB_PROC
- PG_LANGUAGE
- PG_LARGEOBJECT
- PG_LARGEOBJECT_METADATA
- PG_NAMESPACE
- PG_OBJECT
- PG_OPCLASS
- PG_OPERATOR
- PG_OPFAMILY
- PG_PARTITION
- PG_PLTEMPLATE
- PG_PROC
- PG_RANGE
- PG_RESOURCE_POOL
- PG_REWRITE
- PG_RLSPOLICY
- PG_SECLABEL
- PG_SHDEPEND
- PG_SHDESCRIPTION
- PG_SHSECLABEL
- PG_STATISTIC
- PG_STATISTIC_EXT
- PG_SYNONYM
- PG_TABLESPACE
- PG_TRIGGER
- PG_TS_CONFIG
- PG_TS_CONFIG_MAP
- PG_TS_DICT
- PG_TS_PARSER
- PG_TS_TEMPLATE
- PG_TYPE
- PG_USER_MAPPING
- PG_USER_STATUS
- PG_WORKLOAD_GROUP
- PLAN_TABLE_DATA
- STATEMENT_HISTORY
- 系统视图
- GS_AUDITING
- GS_AUDITING_ACCESS
- GS_AUDITING_PRIVILEGE
- GS_CLUSTER_RESOURCE_INFO
- GS_INSTANCE_TIME
- GS_LABELS
- GS_MASKING
- GS_MATVIEWS
- GS_SESSION_MEMORY
- GS_SESSION_CPU_STATISTICS
- GS_SESSION_MEMORY_CONTEXT
- GS_SESSION_MEMORY_DETAIL
- GS_SESSION_MEMORY_STATISTICS
- GS_SQL_COUNT
- GS_WLM_CGROUP_INFO
- GS_WLM_PLAN_OPERATOR_HISTORY
- GS_WLM_REBUILD_USER_RESOURCE_POOL
- GS_WLM_RESOURCE_POOL
- GS_WLM_USER_INFO
- GS_STAT_SESSION_CU
- GS_TOTAL_MEMORY_DETAIL
- MPP_TABLES
- PG_AVAILABLE_EXTENSION_VERSIONS
- PG_AVAILABLE_EXTENSIONS
- PG_COMM_DELAY
- PG_COMM_RECV_STREAM
- PG_COMM_SEND_STREAM
- PG_COMM_STATUS
- PG_CONTROL_GROUP_CONFIG
- PG_CURSORS
- PG_EXT_STATS
- PG_GET_INVALID_BACKENDS
- PG_GET_SENDERS_CATCHUP_TIME
- PG_GROUP
- PG_GTT_RELSTATS
- PG_GTT_STATS
- PG_GTT_ATTACHED_PIDS
- PG_INDEXES
- PG_LOCKS
- PG_NODE_ENV
- PG_OS_THREADS
- PG_PREPARED_STATEMENTS
- PG_PREPARED_XACTS
- PG_REPLICATION_SLOTS
- PG_RLSPOLICIES
- PG_ROLES
- PG_RULES
- PG_SECLABELS
- PG_SETTINGS
- PG_SHADOW
- PG_STATS
- PG_STAT_ACTIVITY
- PG_STAT_ALL_INDEXES
- PG_STAT_ALL_TABLES
- PG_STAT_BAD_BLOCK
- PG_STAT_BGWRITER
- PG_STAT_DATABASE
- PG_STAT_DATABASE_CONFLICTS
- PG_STAT_USER_FUNCTIONS
- PG_STAT_USER_INDEXES
- PG_STAT_USER_TABLES
- PG_STAT_REPLICATION
- PG_STAT_SYS_INDEXES
- PG_STAT_SYS_TABLES
- PG_STAT_XACT_ALL_TABLES
- PG_STAT_XACT_SYS_TABLES
- PG_STAT_XACT_USER_FUNCTIONS
- PG_STAT_XACT_USER_TABLES
- PG_STATIO_ALL_INDEXES
- PG_STATIO_ALL_SEQUENCES
- PG_STATIO_ALL_TABLES
- PG_STATIO_SYS_INDEXES
- PG_STATIO_SYS_SEQUENCES
- PG_STATIO_SYS_TABLES
- PG_STATIO_USER_INDEXES
- PG_STATIO_USER_SEQUENCES
- PG_STATIO_USER_TABLES
- PG_TABLES
- PG_TDE_INFO
- PG_THREAD_WAIT_STATUS
- PG_TIMEZONE_ABBREVS
- PG_TIMEZONE_NAMES
- PG_TOTAL_MEMORY_DETAIL
- PG_TOTAL_USER_RESOURCE_INFO
- PG_TOTAL_USER_RESOURCE_INFO_OID
- PG_USER
- PG_USER_MAPPINGS
- PG_VARIABLE_INFO
- PG_VIEWS
- PLAN_TABLE
- GS_FILE_STAT
- GS_OS_RUN_INFO
- GS_REDO_STAT
- GS_SESSION_STAT
- GS_SESSION_TIME
- GS_THREAD_MEMORY_CONTEXT
- 系统函数
- 支持的数据类型
- SQL语法
- ABORT
- ALTER AGGREGATE
- ALTER AUDIT POLICY
- ALTER DATABASE
- ALTER DATA SOURCE
- ALTER DEFAULT PRIVILEGES
- ALTER DIRECTORY
- ALTER EXTENSION
- ALTER FOREIGN TABLE
- ALTER FUNCTION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER LARGE OBJECT
- ALTER MASKING POLICY
- ALTER MATERIALIZED VIEW
- ALTER OPERATOR
- ALTER RESOURCE LABEL
- ALTER ROLE
- ALTER ROW LEVEL SECURITY POLICY
- ALTER RULE
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER SESSION
- ALTER SYNONYM
- ALTER SYSTEM KILL SESSION
- ALTER SYSTEM SET
- ALTER TABLE
- ALTER TABLE PARTITION
- ALTER TABLESPACE
- ALTER TEXT SEARCH CONFIGURATION
- ALTER TEXT SEARCH DICTIONARY
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER USER MAPPING
- ALTER VIEW
- ANALYZE | ANALYSE
- BEGIN
- CALL
- CHECKPOINT
- CLOSE
- CLUSTER
- COMMENT
- COMMIT | END
- COMMIT PREPARED
- COPY
- CREATE AGGREGATE
- CREATE AUDIT POLICY
- CREATE CAST
- CREATE CLIENT MASTER KEY
- CREATE COLUMN ENCRYPTION KEY
- CREATE DATABASE
- CREATE DATA SOURCE
- CREATE DIRECTORY
- CREATE EXTENSION
- CREATE FOREIGN TABLE
- CREATE FUNCTION
- CREATE GROUP
- CREATE INCREMENTAL MATERIALIZED VIEW
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MASKING POLICY
- CREATE MATERIALIZED VIEW
- CREATE OPERATOR
- CREATE ROW LEVEL SECURITY POLICY
- CREATE PROCEDURE
- CREATE RESOURCE LABEL
- CREATE ROLE
- CREATE RULE
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE SYNONYM
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLE PARTITION
- CREATE TABLESPACE
- CREATE TEXT SEARCH CONFIGURATION
- CREATE TEXT SEARCH DICTIONARY
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE USER MAPPING
- CREATE VIEW
- CURSOR
- DEALLOCATE
- DECLARE
- DELETE
- DO
- DROP AGGREGATE
- DROP AUDIT POLICY
- DROP CAST
- DROP CLIENT MASTER KEY
- DROP COLUMN ENCRYPTION KEY
- DROP DATABASE
- DROP DATA SOURCE
- DROP DIRECTORY
- DROP EXTENSION
- DROP FOREIGN TABLE
- DROP FUNCTION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MASKING POLICY
- DROP MATERIALIZED VIEW
- DROP OPERATOR
- DROP OWNED
- DROP RESOURCE LABEL
- DROP ROW LEVEL SECURITY POLICY
- DROP PROCEDURE
- DROP ROLE
- DROP RULE
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP SYNONYM
- DROP TABLE
- DROP TABLESPACE
- DROP TEXT SEARCH CONFIGURATION
- DROP TEXT SEARCH DICTIONARY
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP USER MAPPING
- DROP VIEW
- EXECUTE
- EXPLAIN
- EXPLAIN PLAN
- FETCH
- GRANT
- INSERT
- LOCK
- MOVE
- MERGE INTO
- PREPARE
- PREPARE TRANSACTION
- REASSIGN OWNED
- REFRESH INCREMENTAL MATERIALIZED VIEW
- REFRESH MATERIALIZED VIEW
- REINDEX
- RELEASE SAVEPOINT
- RESET
- REVOKE
- ROLLBACK
- ROLLBACK PREPARED
- ROLLBACK TO SAVEPOINT
- SAVEPOINT
- SELECT
- SELECT INTO
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SET TRANSACTION
- SHOW
- SHUTDOWN
- START TRANSACTION
- TRUNCATE
- UPDATE
- VACUUM
- VALUES
- SQL参考
- GUC参数说明
- Information Schema
- DBE_PERF
- 概述
- OS
- Instance
- Memory
- File
- Object
- STAT_USER_TABLES
- SUMMARY_STAT_USER_TABLES
- GLOBAL_STAT_USER_TABLES
- STAT_USER_INDEXES
- SUMMARY_STAT_USER_INDEXES
- GLOBAL_STAT_USER_INDEXES
- STAT_SYS_TABLES
- SUMMARY_STAT_SYS_TABLES
- GLOBAL_STAT_SYS_TABLES
- STAT_SYS_INDEXES
- SUMMARY_STAT_SYS_INDEXES
- GLOBAL_STAT_SYS_INDEXES
- STAT_ALL_TABLES
- SUMMARY_STAT_ALL_TABLES
- GLOBAL_STAT_ALL_TABLES
- STAT_ALL_INDEXES
- SUMMARY_STAT_ALL_INDEXES
- GLOBAL_STAT_ALL_INDEXES
- STAT_DATABASE
- SUMMARY_STAT_DATABASE
- GLOBAL_STAT_DATABASE
- STAT_DATABASE_CONFLICTS
- SUMMARY_STAT_DATABASE_CONFLICTS
- GLOBAL_STAT_DATABASE_CONFLICTS
- STAT_XACT_ALL_TABLES
- SUMMARY_STAT_XACT_ALL_TABLES
- GLOBAL_STAT_XACT_ALL_TABLES
- STAT_XACT_SYS_TABLES
- SUMMARY_STAT_XACT_SYS_TABLES
- GLOBAL_STAT_XACT_SYS_TABLES
- STAT_XACT_USER_TABLES
- SUMMARY_STAT_XACT_USER_TABLES
- GLOBAL_STAT_XACT_USER_TABLES
- STAT_XACT_USER_FUNCTIONS
- SUMMARY_STAT_XACT_USER_FUNCTIONS
- GLOBAL_STAT_XACT_USER_FUNCTIONS
- STAT_BAD_BLOCK
- SUMMARY_STAT_BAD_BLOCK
- GLOBAL_STAT_BAD_BLOCK
- STAT_USER_FUNCTIONS
- SUMMARY_STAT_USER_FUNCTIONS
- GLOBAL_STAT_USER_FUNCTIONS
- Workload
- Session/Thread
- SESSION_STAT
- GLOBAL_SESSION_STAT
- SESSION_TIME
- GLOBAL_SESSION_TIME
- SESSION_MEMORY
- GLOBAL_SESSION_MEMORY
- SESSION_MEMORY_DETAIL
- GLOBAL_SESSION_MEMORY_DETAIL
- SESSION_STAT_ACTIVITY
- GLOBAL_SESSION_STAT_ACTIVITY
- THREAD_WAIT_STATUS
- GLOBAL_THREAD_WAIT_STATUS
- LOCAL_THREADPOOL_STATUS
- GLOBAL_THREADPOOL_STATUS
- SESSION_CPU_RUNTIME
- SESSION_MEMORY_RUNTIME
- STATEMENT_IOSTAT_COMPLEX_RUNTIME
- Transaction
- Query
- STATEMENT
- SUMMARY_STATEMENT
- STATEMENT_COUNT
- GLOBAL_STATEMENT_COUNT
- SUMMARY_STATEMENT_COUNT
- GLOBAL_STATEMENT_COMPLEX_HISTORY
- GLOBAL_STATEMENT_COMPLEX_HISTORY_TABLE
- GLOBAL_STATEMENT_COMPLEX_RUNTIME
- STATEMENT_RESPONSETIME_PERCENTILE
- STATEMENT_USER_COMPLEX_HISTORY
- STATEMENT_COMPLEX_RUNTIME
- STATEMENT_COMPLEX_HISTORY_TABLE
- STATEMENT_COMPLEX_HISTORY
- STATEMENT_WLMSTAT_COMPLEX_RUNTIME
- STATEMENT_HISTORY
- Cache/IO
- STATIO_USER_TABLES
- SUMMARY_STATIO_USER_TABLES
- GLOBAL_STATIO_USER_TABLES
- STATIO_USER_INDEXES
- SUMMARY_STATIO_USER_INDEXES
- GLOBAL_STATIO_USER_INDEXES
- STATIO_USER_SEQUENCES
- SUMMARY_STATIO_USER_SEQUENCES
- GLOBAL_STATIO_USER_SEQUENCES
- STATIO_SYS_TABLES
- SUMMARY_STATIO_SYS_TABLES
- GLOBAL_STATIO_SYS_TABLES
- STATIO_SYS_INDEXES
- SUMMARY_STATIO_SYS_INDEXES
- GLOBAL_STATIO_SYS_INDEXES
- STATIO_SYS_SEQUENCES
- SUMMARY_STATIO_SYS_SEQUENCES
- GLOBAL_STATIO_SYS_SEQUENCES
- STATIO_ALL_TABLES
- SUMMARY_STATIO_ALL_TABLES
- GLOBAL_STATIO_ALL_TABLES
- STATIO_ALL_INDEXES
- SUMMARY_STATIO_ALL_INDEXES
- GLOBAL_STATIO_ALL_INDEXES
- STATIO_ALL_SEQUENCES
- SUMMARY_STATIO_ALL_SEQUENCES
- GLOBAL_STATIO_ALL_SEQUENCES
- GLOBAL_STAT_DB_CU
- GLOBAL_STAT_SESSION_CU
- Utility
- REPLICATION_STAT
- GLOBAL_REPLICATION_STAT
- REPLICATION_SLOTS
- GLOBAL_REPLICATION_SLOTS
- BGWRITER_STAT
- GLOBAL_BGWRITER_STAT
- GLOBAL_CKPT_STATUS
- GLOBAL_DOUBLE_WRITE_STATUS
- GLOBAL_PAGEWRITER_STATUS
- GLOBAL_RECORD_RESET_TIME
- GLOBAL_REDO_STATUS
- GLOBAL_RECOVERY_STATUS
- CLASS_VITAL_INFO
- USER_LOGIN
- SUMMARY_USER_LOGIN
- GLOBAL_GET_BGWRITER_STATUS
- Lock
- Wait Events
- Configuration
- Operator
- Workload Manager
- Global Plancache
- 附录
- 工具参考
- 数据库报错信息
- SQL标准错误码说明
- 第三方库错误码说明
- GAUSS-00001 - GAUSS-00100
- GAUSS-00101 - GAUSS-00200
- GAUSS 00201 - GAUSS 00300
- GAUSS 00301 - GAUSS 00400
- GAUSS 00401 - GAUSS 00500
- GAUSS 00501 - GAUSS 00600
- GAUSS 00601 - GAUSS 00700
- GAUSS 00701 - GAUSS 00800
- GAUSS 00801 - GAUSS 00900
- GAUSS 00901 - GAUSS 01000
- GAUSS 01001 - GAUSS 01100
- GAUSS 01101 - GAUSS 01200
- GAUSS 01201 - GAUSS 01300
- GAUSS 01301 - GAUSS 01400
- GAUSS 01401 - GAUSS 01500
- GAUSS 01501 - GAUSS 01600
- GAUSS 01601 - GAUSS 01700
- GAUSS 01701 - GAUSS 01800
- GAUSS 01801 - GAUSS 01900
- GAUSS 01901 - GAUSS 02000
- GAUSS 02001 - GAUSS 02100
- GAUSS 02101 - GAUSS 02200
- GAUSS 02201 - GAUSS 02300
- GAUSS 02301 - GAUSS 02400
- GAUSS 02401 - GAUSS 02500
- GAUSS 02501 - GAUSS 02600
- GAUSS 02601 - GAUSS 02700
- GAUSS 02701 - GAUSS 02800
- GAUSS 02801 - GAUSS 02900
- GAUSS 02901 - GAUSS 03000
- GAUSS 03001 - GAUSS 03100
- GAUSS 03101 - GAUSS 03200
- GAUSS 03201 - GAUSS 03300
- GAUSS 03301 - GAUSS 03400
- GAUSS 03401 - GAUSS 03500
- GAUSS 03501 - GAUSS 03600
- GAUSS 03601 - GAUSS 03700
- GAUSS 03701 - GAUSS 03800
- GAUSS 03801 - GAUSS 03900
- GAUSS 03901 - GAUSS 04000
- GAUSS 04001 - GAUSS 04100
- GAUSS 04101 - GAUSS 04200
- GAUSS 04201 - GAUSS 04300
- GAUSS 04301 - GAUSS 04400
- GAUSS 04401 - GAUSS 04500
- GAUSS 04501 - GAUSS 04600
- GAUSS 04601 - GAUSS 04700
- GAUSS 04701 - GAUSS 04800
- GAUSS 04801 - GAUSS 04900
- GAUSS 04901 - GAUSS 05000
- GAUSS 05001 - GAUSS 05100
- GAUSS 05101 - GAUSS 05200
- GAUSS 05201 - GAUSS 05300
- GAUSS 05301 - GAUSS 05400
- GAUSS 05401 - GAUSS 05500
- GAUSS 05501 - GAUSS 05600
- GAUSS 05601 - GAUSS 05700
- GAUSS 05701 - GAUSS 05800
- GAUSS 05801 - GAUSS 05900
- GAUSS 05901 - GAUSS 06000
- GAUSS 06001 - GAUSS 06100
- GAUSS 06101 - GAUSS 06200
- GAUSS 06201 - GAUSS 06300
- GAUSS 06301 - GAUSS 06400
- GAUSS 06401 - GAUSS 06500
- GAUSS 06501 - GAUSS 06600
- GAUSS 06601 - GAUSS 06700
- GAUSS 06701 - GAUSS 06800
- GAUSS 06801 - GAUSS 06900
- GAUSS 06901 - GAUSS 07000
- GAUSS 07001 - GAUSS 07100
- GAUSS 07101 - GAUSS 07200
- GAUSS 07201 - GAUSS 07300
- GAUSS 07301 - GAUSS 07400
- GAUSS 07401 - GAUSS 07480
- GAUSS 50000 - GAUSS 50999
- GAUSS 51000 - GAUSS 51999
- GAUSS 52000 - GAUSS 52999
- GAUSS 53000 - GAUSS 53699
- 系统表及系统视图
- 常见问题解答 (FAQs)
- 术语表
compat-tools
组件获取
https://gitee.com/enmotech/compat-tools
介绍
本项目是一个兼容工具集合,旨在为从其他异构数据库,迁移到 MogDB 之后的系统,创建必要的函数,以及系统视图的兼容。为后续的系统运维与应用改造提供便利。
脚本中带有版本控制,直接运行脚本时,会根据如下三种情况进行处理:
- 若待创建对象在目标数据库中不存在,则直接进行创建
- 若待创建对象版本高于目标数据库中的对象版本,则进行升级重建
- 若待创建对象版本不高于目标数据库中的对象版本,则跳过创建
软件架构
SQL文件:
- runMe.sql: 总调度脚本
- Oracle_Views.sql: Oracle数据库兼容性数据字典及视图
- Oracle_Functions.sql: Oracle数据库兼容性函数
- Oracle_Packages.sql: Oracle数据库管理包兼容
- MySQL_Views.sql: MySQL数据库兼容性数据字典及视图 //TODO
- MySQL_Functions.sql: MySQL数据库兼容性函数
- DB2_Functions.sql: DB2数据库兼容性函数
使用说明
直接在MogDB数据库中执行sql文本。
注意:以下所有操作需要在当前脚本所在的目录中执行。
创建所有兼容性对象
创建所有兼容性对象,包括:视图,函数,管理包等。
# 本地用户,默认库登录
gsql -f runMe.sql
# 详细创建语法,注意 test 用户权限(需要具有 sysadmin 权限)
gsql -h 127.0.0.1 -p 5432 -U test -d postgres -f runMe.sql
创建单一类兼容对象
以下以 Oracle 兼容性视图为例,其他兼容性对象脚本,也可以以此方式创建。
# 本地用户,默认库登录
gsql -f Oracle_Views.sql
# 详细创建语法,注意 test 用户权限(需要具有 sysadmin 权限)
gsql -h 127.0.0.1 -p 5432 -U test -d postgres -f Oracle_Views.sql
结果说明
脚本运行结束后,会自动输出以下两类内容:
-
本次脚本中涉及到的兼容对象,以及对应的操作内容
gsql:Oracle_Functions.sql:1035: NOTICE: -- ===================================================================== gsql:Oracle_Functions.sql:1035: NOTICE: -- Compat Object List: gsql:Oracle_Functions.sql:1035: NOTICE: -- ===================================================================== gsql:Oracle_Functions.sql:1035: NOTICE: | type | name | version | language | operation | gsql:Oracle_Functions.sql:1035: NOTICE: |-----------|--------------------------------------------------|---------|----------|---------------------| gsql:Oracle_Functions.sql:1035: NOTICE: | function | months_between(timestamptz,timestamptz) | 2.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | sys_guid() | 1.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | aggregate | wm_concat(text) | 1.0 | internal | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | nvl2(anyelement,anyelement,anyelement) | 1.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | trunc(timestamp,text) | 1.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | trunc(timestamptz,text) | 1.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | nanvl(numeric,numeric) | 1.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | regexp_substr(text,text,int4) | 2.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | regexp_substr(text,text,int4,int4,text,int4) | 2.0 | plpgsql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | regexp_instr(text,text,int4,int4,int4,text,int4) | 1.0 | plpgsql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | regexp_replace(text,text,text,int4,int4,text) | 1.0 | plpgsql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | regexp_count(text,text,int4,text) | 2.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | replace(text,text) | 1.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | ora_hash(anyelement,int4,int4) | 1.0 | plpgsql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | show(text) | 1.0 | sql | Skip due to version | gsql:Oracle_Functions.sql:1035: NOTICE: | function | show_parameter(text) | 1.0 | sql | Skip due to version |
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本次脚本中内置的测试用例的运行汇总
确认所有测试用例都是最新执行,并且没有类型为
FAILED
的测试用例即可。gsql:Oracle_Functions.sql:1035: NOTICE: -- ===================================================================== gsql:Oracle_Functions.sql:1035: NOTICE: -- Function Test Result: gsql:Oracle_Functions.sql:1035: NOTICE: -- ===================================================================== gsql:Oracle_Functions.sql:1035: NOTICE: | result_type | case_count | start_time | complete_time | gsql:Oracle_Functions.sql:1035: NOTICE: |-------------|------------|----------------------------|----------------------------| gsql:Oracle_Functions.sql:1035: NOTICE: | PASSED | 387 | 2021-11-25 09:42:20.016619 | 2021-11-25 09:42:52.127892 | gsql:Oracle_Functions.sql:1035: NOTICE: | NULL | 6 | 2021-11-25 09:42:20.016619 | 2021-11-25 09:42:20.016619 |
查询已创建的兼容对象及版本
select * from compat_tools.compat_version;
查询测试用例详情
select * from compat_tools.compat_testing;
Oracle 兼容视图
Oracle_Views.sql 包含如下几类 Oracle 兼容性视图:
管理视图: ALL_*, DBA_*, USER_*
ALL_ 视图当前与 DBA_ 视图一致,并未做权限检验,后期版本将会考虑权限校验。
- [DBA,ALL,USER]_CATALOG
- [DBA,ALL,USER]_CONS_COLUMNS
- [DBA,ALL,USER]_CONSTRAINTS
- [DBA,ALL,USER]_DATA_FILES
- [DBA,ALL,USER]_DEPENDENCIES
- [DBA,ALL,USER]_IND_COLUMNS
- [DBA,ALL,USER]_IND_PARTITIONS
- [DBA,ALL,USER]_IND_STATISTICS
- [DBA,ALL,USER]_INDEX_USAGE
- [DBA,ALL,USER]_INDEXES
- [DBA,ALL,USER]_OBJECTS
- [DBA,ALL,USER]_PART_INDEXES
- [DBA,ALL,USER]_PART_TABLES
- [DBA,ALL,USER]_PROCEDURES
- [DBA,ALL,USER]_SEGMENTS
- [DBA,ALL,USER]_SEQUENCES
- [DBA,ALL,USER]_SOURCE
- [DBA,ALL,USER]_SYNONYMS
- [DBA,ALL,USER]_TAB_COL_STATISTICS
- [DBA,ALL,USER]_TAB_COLS
- [DBA,ALL,USER]_TAB_COLUMNS
- [DBA,ALL,USER]_TAB_COMMENTS
- [DBA,ALL,USER]_TAB_MODIFICATIONS
- [DBA,ALL,USER]_TAB_PARTITIONS
- [DBA,ALL,USER]_TAB_STATISTICS
- [DBA,ALL,USER]_TABLES
- [DBA,ALL,USER]_TABLESPACES
- [DBA,ALL,USER]_TRIGGER_COLS
- [DBA,ALL,USER]_TRIGGERS
- [DBA,ALL,USER]_TYPES
- [DBA,ALL,USER]_VIEWS
- [DBA,ALL,USER]_JOBS
- [DBA,ALL,USER]_JOBS_RUNNING
- [DBA,ALL]_USERS
- DBA_SOURCE_ALL
- NLS_DATABASE_PARAMETERS
- NLS_INSTANCE_PARAMETERS
- NLS_SESSION_PARAMETERS
其他短名称视图
- DICTIONARY
- DICT
- COLS
- IND
- OBJ
- TAB
- DUAL (For 2.0 and above)
动态性能视图: GV,V
- [GV,V]$DATAFILE
- [GV,V]$LOCK
- [GV,V]$PARAMETER
- [GV,V]$PARAMETER_VALID_VALUES
- [GV,V]$SESSION
- [GV,V]$SESSTAT
- [GV,V]$SPPARAMETER
- [GV,V]$SYSSTAT
- [GV,V]$TABLESPACE
- [GV,V]$VERSION
- [GV,V]$NLS_PARAMETERS
- [GV,V]$NLS_VALID_VALUES
权限统一查询视图
- DBA_DETAIL_PRIVILEGES
- DBA_ALL_PRIVILEGES
- DBA_ALL_PRIVILEGES_SQL
Oracle 兼容函数
字符函数
- regexp_substr(text,text,int4)
- regexp_substr(text,text,int4,int4,text,int4) -- 注意: 最后一个参数 p_subexpr 不支持
- regexp_instr(text,text,int4,int4,text,int4)
- regexp_replace(text,text,text,int4,int4,text)
- regexp_count(text,text,int4,text)
- replace(text,text)
时间函数
- months_between(timestamp, timestamp)
- trunc(timestamp, text)
- trunc(timestamptz, text)
- round(timestamptz,text)
数字函数
- nanvl(numeric,numeric)
聚合函数
- wm_concat(text)
NULL 值相关函数
- nullif(anyelement, anyelement)
- nvl2(anyelement, anyelement, anyelement)
其他函数
- sys_guid()
- ora_hash(anyelement,bigint,bigint)
- show(text) -- 提供类似 Oracle 中 show xxx 查看相关参数的功能
- show_parameter(text) -- 等同于 show(text)
- dump(anynonarray)
Oracle 管理包
DBMS_METADATA
- get_ddl(object_type, object_name, schema_name)
DBMS_OUTPUT
- enable(size)
- disable()
- get_line(line, status)
- get_lines(lines, numlines)
- new_line()
- put(text)
- put_line(text)
DBMS_RANDOM
- initialize(int4) -- deprecated in Oracle
- normal()
- random() -- deprecated in Oracle
- seed(int4)
- seed(text)
- string(char,int4)
- terminate() -- deprecated in Oracle
- value()
- value(numeric,numeric)
关于如何使用DBMS_RANDOM在MogDB数据库中生成随机数(数字、字符串和日期),请参见DBMS_RANDOM。
DBMS_JOB
- broken(int8,bool,timestamp)
- change(int8,text,timestamp,text,int4,bool)
- instance(int8,int4,bool)
- interval(int8,text)
- next_date(int8,timestamp)
- remove(int8)
- run(int8,bool)
- submit(int8,text,timestamp,text,bool,int4,bool)
- user_export(int8,text)
- what(int8,text)
MySQL 兼容函数
NULL 相关函数
注意: ifnull 效果等同于通用函数 coalesce,在条件允许的情况下,建议修改 SQL 使用 coalesce 函数,该函数几乎在各个数据库中均支持
- ifnull(text,text)
- ifnull(numeric,numeric)
- ifnull(timestamp,timestamp)
- ifnull(timestamptz,timestamptz)
- isnull(text) -- 注意: MogDB 中如果创建数据库时,使用默认的 A 兼容模式,那么 '' 空字符串也会被识别为 NULL 值
- isnull(numeric)
- isnull(timestamptz)
条件控制函数
- if(bool,text,text)
- if(bool,numeric,numeric)
- if(bool,timestamptz,timestamptz)
字符函数
- find_in_set(text,text)
- find_in_set(text,text[])
- field(text,text[])
- elt(int4,text[])
- strcmp(text,text)
- insert(text,int8,int8,text)
- lcase(text)
- ucase(text)
- space(int4)
- mid(text,int8,int8)
- locate(text,text,int4)
- to_base64(text)
- from_base64(text)
数字函数
- field(numeric,numeric[])
- log10(numeric)
- log10(float8)
- rand(int4)
时间函数
- unix_timestamp(timestamp)
- unix_timestamp(timestamptz)
- from_unixtime(int8)
- from_unixtime(numeric)
- from_unixtime(numeric,text)
- to_days(timestamp)
- to_seconds(timestamp)
- to_seconds(timestamptz)
- timediff(timestamptz,timestamptz)
- time_to_sec(time)
- sec_to_time(int4)
- date_format(timestamp, text)
- date_format(timestamptz, text)
- timestampdiff(text,timestamptz,timestamptz) -- 注意: 使用必须带 pg_catalog. 前缀Schema,第一个单位参数必须使用单引号包裹
- str_to_date(text,text) -- 由于 MySQL 与 MogDB 中时间类型的差异,本兼容函数并非完全一致性的兼容,详细请查阅对应函数尾部的用例描述部分
其他函数
- uuid() -- 提供基于 随机值+时间戳 的哈希计算 uuid
- uuid_to_bin(uuid, int4)
- bin_to_uuid(bytea, int4)
DB2 兼容函数
NULL 相关函数
注意: value 效果等同于通用函数 coalesce,在条件允许的情况下,建议修改 SQL 使用 coalesce 函数,该函数几乎在各个数据库中均支持
- value(text,text)
- value(numeric,numeric)
- value(timestamp,timestamp)
- value(timestamptz,timestamptz)
字符函数
- posstr(text,text)
- locate_in_string(text,text,int4,int4,text)
- regexp_match_count(text,text,int4,text,text)
时间函数
- year (text)
- year (timestamptz)
- year (interval)
- month (text)
- month (timestamptz)
- month (interval)
- quarter (timestamptz)
- week (timestamptz)
- day (text)
- day (timestamptz)
- day (interval)
- hour (text)
- hour (timestamptz)
- hour (interval)
- minute (text)
- minute (timestamptz)
- minute (interval)
- second (text)
- second (timestamptz)
- second (interval)
- days (timestamptz)
- dayofyear (timestamptz)
- dayofweek (timestamptz)
- dayofweek_iso (timestamptz)
- dayname (timestamptz)
- monthname (timestamptz)
- midnight_seconds (timestamptz)
- next_day (timestamptz,text,text)
- next_month (timestamptz)
- next_quarter (timestamptz)
- next_week (timestamptz)
- next_year (timestamptz)
- last_day (timestamptz)
- first_day (timestamptz)
- this_month (timestamptz)
- this_quarter (timestamptz)
- this_week (timestamptz)
- this_year (timestamptz)
- days_between (timestamptz,timestamptz)
- years_between (timestamptz,timestamptz)
- ymd_between (timestamptz,timestamptz)