- 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
事务管理
存储过程本身就处于一个事务中,开始调用最外围存储过程时会自动开启一个事务,在调用结束时自动提交或者发生异常时回滚。除了系统自动的事务控制外,也可以使用COMMIT/ROLLBACK来控制存储过程中的事务。在存储过程中调用COMMIT/ROLLBACK命令,将提交/回滚当前事务并自动开启一个新的事务,后续的所有操作都会在此新事务中运行。
使用场景
支持调用的上下文环境:
- 支持在PLSQL的存储过程内使用COMMIT/ROLLBACK。
- 支持含有EXCEPTION的存储过程使用COMMIT/ROLLBACK。
- 支持在存储过程的EXCEPTION语句内使用COMMIT/ROLLBACK。
- 支持在事务块里调用含有COMMIT/ROLLBACK的存储过程,即通过/BEGIN/START/END等开启控制的外部事务。
- 支持多数PLSQL的上下文和语句内调用COMMIT/ROLLBACK,包括常用的IF/FOR/CURSOR LOOP/WHILE。
支持提交/回滚的内容:
- 支持DDL在COMMIT/ROLLBACK后的提交/回滚。
- 支持DML的COMMIT/ROLLBACK后的提交。
- 支持存储过程内GUC参数的回滚提交。
使用限制
不支持调用的上下文环境:
- 不支持除了PLSQL的其他存储过程中调用COMMIT/ROLLBACK,例如PLJAVA、PLPYTHON等。
- 不支持函数中调用COMMIT/ROLLBACK,包括函数调用含有COMMIT/ROLLBACK的存储过程。
- 不支持事务块中调用了SAVEPOINT后,调用含有COMMIT/ROLLBACK的存储过程。
- 不支持TRIGGER中调用含有COMMIT/ROLLBACK的存储过程。
- 不支持EXECUTE语句中调用COMMIT/ROLLBACK语句。
- 不支持在CURSOR语句中打开一个含有COMMIT/ROLLBACK的存储过程。
- 不支持带有IMMUTABLE以及SHIPPABLE的存储过程调用COMMIT/ROLLBACK,或调用带有COMMIT/ROLLBACK语句的存储过程。
- 不支持SQL中调用含有COMMIT/ROLLBACK的存储过程,除了SELECT PROC以及CALL PROC。
- 存储过程头带有GUC参数设置的不允许调用COMMIT/ROLLBACK语句。
- 不支持CURSOR/EXECUTE语句,以及各类表达式内调用COMMIT/ROLLBACK。
- 不支持存储过程返回值与表达式计算。
不支持提交回滚的内容:
- 不支持存储过程内声明变量以及传入变量的提交/回滚。
- 不支持存储过程内必须重启生效的GUC参数的提交/回滚。
示例
-
示例1: 支持在PLSQL的存储过程内使用COMMIT/ROLLBACK。
CREATE TABLE EXAMPLE1(COL1 INT); CREATE OR REPLACE PROCEDURE TRANSACTION_EXAMPLE() AS BEGIN FOR i IN 0..20 LOOP INSERT INTO EXAMPLE1(COL1) VALUES (i); IF i % 2 = 0 THEN COMMIT; ELSE ROLLBACK; END IF; END LOOP; END; /
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示例2:
支持含有EXCEPTION的存储过程使用COMMIT/ROLLBACK。
支持在存储过程的EXCEPTION语句内使用COMMIT/ROLLBACK。
支持DDL在COMMIT/ROLLBACK后的提交/回滚。
CREATE OR REPLACE PROCEDURE TEST_COMMIT_INSERT_EXCEPTION_ROLLBACK() AS BEGIN DROP TABLE IF EXISTS TEST_COMMIT; CREATE TABLE TEST_COMMIT(A INT, B INT); INSERT INTO TEST_COMMIT SELECT 1, 1; COMMIT; CREATE TABLE TEST_ROLLBACK(A INT, B INT); RAISE EXCEPTION 'RAISE EXCEPTION AFTER COMMIT'; EXCEPTION WHEN OTHERS THEN INSERT INTO TEST_COMMIT SELECT 2, 2; ROLLBACK; END; /
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示例3: 支持在事务块里调用含有COMMIT/ROLLBACK的存储过程,即通过/BEGIN/START/END等开启控制的外部事务。
BEGIN; CALL TEST_COMMIT_INSERT_EXCEPTION_ROLLBACK(); END;
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示例4: 支持多数PLSQL的上下文和语句内调用COMMIT/ROLLBACK,包括常用的IF/FOR/CURSOR LOOP/WHILE。
CREATE OR REPLACE PROCEDURE TEST_COMMIT2() IS BEGIN DROP TABLE IF EXISTS TEST_COMMIT; CREATE TABLE TEST_COMMIT(A INT); FOR I IN REVERSE 3..0 LOOP INSERT INTO TEST_COMMIT SELECT I; COMMIT; END LOOP; FOR I IN REVERSE 2..4 LOOP UPDATE TEST_COMMIT SET A=I; COMMIT; END LOOP; EXCEPTION WHEN OTHERS THEN INSERT INTO TEST_COMMIT SELECT 4; COMMIT; END; /
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示例5: 支持存储过程内GUC参数的回滚提交。
SHOW explain_perf_mode; SHOW enable_force_vector_engine; CREATE OR REPLACE PROCEDURE GUC_ROLLBACK() AS BEGIN SET enable_force_vector_engine = on; COMMIT; SET explain_perf_mode TO pretty; ROLLBACK; END; / call GUC_ROLLBACK(); SHOW explain_perf_mode; SHOW enable_force_vector_engine; SET enable_force_vector_engine = off;
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示例6: 函数(Function)中不允许调用commit/rollback语句,同时不允许函数调用含有commit/rollback的存储过程。
CREATE OR REPLACE FUNCTION FUNCTION_EXAMPLE1() RETURN INT AS EXP INT; BEGIN FOR i IN 0..20 LOOP INSERT INTO EXAMPLE1(col1) VALUES (i); IF i % 2 = 0 THEN COMMIT; ELSE ROLLBACK; END IF; END LOOP; SELECT COUNT(*) FROM EXAMPLE1 INTO EXP; RETURN EXP; END; /
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示例7: 函数(Fucntion)中不允许调用带有commit/rollback语句的存储过程。
CREATE OR REPLACE FUNCTION FUNCTION_EXAMPLE2() RETURN INT AS EXP INT; BEGIN --transaction_example为存储过程,带有commit/rollback语句 CALL transaction_example(); SELECT COUNT(*) FROM EXAMPLE1 INTO EXP; RETURN EXP; END; /
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示例8: 不允许Trigger的存储过程包含commit/rollback语句,或调用带有commit/rollback语句的存储过程。
CREATE OR REPLACE FUNCTION FUNCTION_TRI_EXAMPLE2() RETURN TRIGGER AS EXP INT; BEGIN FOR i IN 0..20 LOOP INSERT INTO EXAMPLE1(col1) VALUES (i); IF i % 2 = 0 THEN COMMIT; ELSE ROLLBACK; END IF; END LOOP; SELECT COUNT(*) FROM EXAMPLE1 INTO EXP; END; / CREATE TRIGGER TRIGGER_EXAMPLE AFTER DELETE ON EXAMPLE1 FOR EACH ROW EXECUTE PROCEDURE FUNCTION_TRI_EXAMPLE2(); DELETE FROM EXAMPLE1;
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示例9: 不支持带有IMMUABLE以及SHIPPABLE的存储过程调用commit/rollback,或调用带有commit/rollback语句的存储过程。
CREATE OR REPLACE PROCEDURE TRANSACTION_EXAMPLE1() IMMUTABLE AS BEGIN FOR i IN 0..20 LOOP INSERT INTO EXAMPLE1 (col1) VALUES (i); IF i % 2 = 0 THEN COMMIT; ELSE ROLLBACK; END IF; END LOOP; END; /
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示例10: 不支持存储过程中任何变量的提交,包括存储过程内声明的变量或者传入的参数。
CREATE OR REPLACE PROCEDURE TRANSACTION_EXAMPLE2(EXP_OUT OUT INT) AS EXP INT; BEGIN EXP_OUT := 0; COMMIT; RAISE NOTICE '%', 'EXP IS:'||EXP; EXP_OUT := 1; ROLLBACK; RAISE NOTICE '%', 'EXP IS:'||EXP; END; /
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示例11: 不支持出现在SQL中的调用(除了Select Procedure)。
CREATE OR REPLACE PROCEDURE TRANSACTION_EXAMPLE3() AS BEGIN FOR i IN 0..20 LOOP INSERT INTO EXAMPLE1 (col1) VALUES (i); IF i % 2 = 0 THEN EXECUTE IMMEDIATE 'COMMIT'; ELSE EXECUTE IMMEDIATE 'ROLLBACK'; END IF; END LOOP; END; /
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示例12: 存储过程头带有GUC参数设置的不允许调用commit/rollback语句。
CREATE OR REPLACE PROCEDURE TRANSACTION_EXAMPLE4() SET ARRAY_NULLS TO "ON" AS BEGIN FOR i IN 0..20 LOOP INSERT INTO EXAMPLE1 (col1) VALUES (i); IF i % 2 = 0 THEN COMMIT; ELSE ROLLBACK; END IF; END LOOP; END; /
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示例13: 游标open的对象不允许为带有commit/rollback语句的存储过程。
CREATE OR REPLACE PROCEDURE TRANSACTION_EXAMPLE5(INTIN IN INT, INTOUT OUT INT) AS BEGIN INTOUT := INTIN + 1; COMMIT; END; / CREATE OR REPLACE PROCEDURE TRANSACTION_EXAMPLE6() AS CURSOR CURSOR1(EXPIN INT) IS SELECT TRANSACTION_EXAMPLE5(EXPIN); INTEXP INT; BEGIN FOR i IN 0..20 LOOP OPEN CURSOR1(i); FETCH CURSOR1 INTO INTEXP; INSERT INTO EXAMPLE1(COL1) VALUES (INTEXP); IF i % 2 = 0 THEN COMMIT; ELSE ROLLBACK; END IF; CLOSE CURSOR1; END LOOP; END; /
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示例14: 不支持CURSOR/EXECUTE语句,以及各类表达式内调用COMMIT/ROLLBACK。
CREATE OR REPLACE PROCEDURE exec_func1() AS BEGIN CREATE TABLE TEST_exec(A INT); COMMIT; END; / CREATE OR REPLACE PROCEDURE exec_func2() AS BEGIN EXECUTE exec_func1(); COMMIT; END; /
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示例15: 不支持存储过程返回值与表达式计算。
CREATE OR REPLACE PROCEDURE exec_func3(RET_NUM OUT INT) AS BEGIN RET_NUM := 1+1; COMMIT; END; / CREATE OR REPLACE PROCEDURE exec_func4(ADD_NUM IN INT) AS SUM_NUM INT; BEGIN SUM_NUM := ADD_NUM + exec_func3(); COMMIT; END; /