[转]What is INITRANS and MAXTRANS

最新推荐文章于 2024-06-30 16:55:40 发布
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Oracle INITRANS和MAXTRANS
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<br />每个块都有一个块首部。这个块首部中有一个事务表。事务表中会建立一些条目来描述哪些事务将块上的哪些行/元素锁定。这个事务表的初始大小由对象的INITRANS 设置指定。对于表，这个值默认为1（索引的INITRANS 默认为2）。事务表会根据需要动态扩展，最大达到MAXTRANS 个条目（假设块上有足够的自由空间）。所分配的每个事务条目需要占用块首部中的23～24 字节的存储空间。注意，对于Oracle 10g，MAXTRANS 则会忽略，所有段的MAXTRANS 都是255。<br /><br /
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ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_ESCI_PK" ON "SYSMAN"."MGMT_ECM_SNAP_COMPONENT_INFO" ("SNAPSHOT_GUID", "COMPONENT_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."CON_UK" ON "SYSMAN"."MGMT_INV_CONTAINER" ("SNAPSHOT_GUID", "CONTAINER_LOCATION") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."ENT_PK" ON "SYSMAN"."MGMT_INV_COMPONENT" ("NAME", "VERSION", "CONTAINER_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MDIV_PK" ON "SYSMAN"."MGMT_DELTA_ID_VALUES" ("DELTA_IDS_GUID", "NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."OSP_SNP_PK" ON "SYSMAN"."MGMT_HC_OS_PROPERTIES" ("SNAPSHOT_GUID", "TYPE", "NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."TABLE_SIZES_PRIMARY_KEY" ON "SYSMAN"."MGMT_TABLE_SIZES" ("COLLECTION_TIMESTAMP", "TABLE_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."INDEX_SIZES_PRIMARY_KEY" ON "SYSMAN"."MGMT_INDEX_SIZES" ("COLLECTION_TIMESTAMP", "INDEX_NAME", "TABLE_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_TARGET_PROPERTIES_PK" ON "SYSMAN"."MGMT_TARGET_PROPERTIES" ("TARGET_GUID", "PROPERTY_NAME", "PROPERTY_TYPE") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_STRING_METRIC_HISTORY_PK" ON "SYSMAN"."MGMT_STRING_METRIC_HISTORY" ("TARGET_GUID", "METRIC_GUID", "KEY_VALUE", "COLLECTION_TIMESTAMP") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 3 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_METRIC_ERRORS_PK" ON "SYSMAN"."MGMT_METRIC_ERRORS" ("TARGET_GUID", "METRIC_GUID", "COLL_NAME", "AGENT_GUID", "COLLECTION_TIMESTAMP") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 4 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."PARAMETERS_PRIMARY_KEY" ON "SYSMAN"."MGMT_PARAMETERS" ("PARAMETER_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_ECM_SNAP_IDX" ON "SYSMAN"."MGMT_ECM_SNAPSHOT" ("SNAPSHOT_TYPE", "TARGET_NAME", "TARGET_TYPE") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_ECM_SNAP_IDX2" ON "SYSMAN"."MGMT_ECM_SNAPSHOT" ("IS_CURRENT", "TARGET_TYPE", "SNAPSHOT_TYPE", "TARGET_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_INV_SUMMARY_IDX" ON "SYSMAN"."MGMT_INV_SUMMARY" ("SNAPSHOT_GUID", "MAP_TARGET_TYPE") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_INV_COM_CONT_IDX" ON "SYSMAN"."MGMT_INV_COMPONENT" ("CONTAINER_GUID", "NAME", "VERSION") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_INV_COMPONENT_IDX_1" ON "SYSMAN"."MGMT_INV_COMPONENT" ("CONTAINER_GUID", "COMPONENT_GUID", "NAME", "VERSION") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_INV_VERSIONED_PATCH_PIDX" ON "SYSMAN"."MGMT_INV_VERSIONED_PATCH" ("PATCHSET_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_INV_DEP_ER_IDX" ON "SYSMAN"."MGMT_INV_DEPENDENCY_RULE" ("REFERENCER_GUID", "DEPENDEE_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DELTA_IDS_IDX" ON "SYSMAN"."MGMT_DELTA_IDS" ("COLLECTION_TYPE", "KEY_STRING") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_DELTA_ENTRY_ROWGUID_IDX" ON "SYSMAN"."MGMT_DELTA_ENTRY" ("ROW_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_DELTA_ENTRY_SHOULD_BE_UK" ON "SYSMAN"."MGMT_DELTA_ENTRY" ("DELTA_GUID", "ROW_GUID", "DELTA_TIME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_DELTA_ENTRY_TIME_IDX" ON "SYSMAN"."MGMT_DELTA_ENTRY" ("DELTA_TIME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_DELTA_SNAP_IDX2" ON "SYSMAN"."MGMT_DELTA_SNAP" ("SNAPSHOT_TYPE", "TARGET_TYPE", "NEW_LEFT_TARGET_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 3 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_HC_CPU_DETAILS_IDX" ON "SYSMAN"."MGMT_HC_CPU_DETAILS" ("SNAPSHOT_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_HC_IOCARD_DETAILS_IDX" ON "SYSMAN"."MGMT_HC_IOCARD_DETAILS" ("SNAPSHOT_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_HC_NIC_DETAILS_IDX" ON "SYSMAN"."MGMT_HC_NIC_DETAILS" ("SNAPSHOT_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_HC_OS_COMPONENTS_IDX1" ON "SYSMAN"."MGMT_HC_OS_COMPONENTS" ("SNAPSHOT_GUID", "TYPE", "NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_HC_VENDOR_SW_SUMMARY_IDX" ON "SYSMAN"."MGMT_HC_VENDOR_SW_SUMMARY" ("SNAPSHOT_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_HC_VENDOR_SW_COMPS_IDX" ON "SYSMAN"."MGMT_HC_VENDOR_SW_COMPONENTS" ("VENDOR_SOFTWARE_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_SYSTEM_ERROR_LOG_01" ON "SYSMAN"."MGMT_SYSTEM_ERROR_LOG" ("MODULE_NAME", "LOG_LEVEL", "OCCUR_DATE") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_EMD_PING_IDX_01" ON "SYSMAN"."MGMT_EMD_PING" ("STATUS", "MAX_INACTIVE_TIME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."EMDW_TRACE_DATA_IDX_01" ON "SYSMAN"."EMDW_TRACE_DATA" ("CONTEXT_TYPE_ID", "LOG_TIMESTAMP", "LOG_LEVEL") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_FLAT_TARGET_ASSOC_IDX02" ON "SYSMAN"."MGMT_FLAT_TARGET_ASSOC" ("SOURCE_TARGET_GUID", "ASSOC_TARGET_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_FLAT_TARGET_ASSOC_IDX03" ON "SYSMAN"."MGMT_FLAT_TARGET_ASSOC" ("ASSOC_TARGET_GUID", "SOURCE_TARGET_GUID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_FLAT_TARGET_ASSOC_IDX01" ON "SYSMAN"."MGMT_FLAT_TARGET_ASSOC" ("SOURCE_TARGET_GUID", "IS_MEMBERSHIP") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "SYSMAN"."MGMT_FLAT_TARGET_ASSOC_IDX04" ON "SYSMAN"."MGMT_FLAT_TARGET_ASSOC" ("ASSOC_TARGET_GUID", "IS_MEMBERSHIP") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DB_CONTROLFILES_ECM_PK" ON "SYSMAN"."MGMT_DB_CONTROLFILES_ECM" ("ECM_SNAPSHOT_ID", "FILE_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DB_ROLLBACK_SEGS_ECM_PK" ON "SYSMAN"."MGMT_DB_ROLLBACK_SEGS_ECM" ("ECM_SNAPSHOT_ID", "ROLLNAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DB_SGA_ECM_PK" ON "SYSMAN"."MGMT_DB_SGA_ECM" ("ECM_SNAPSHOT_ID", "SGANAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DB_TABLESPACES_ECM_PK" ON "SYSMAN"."MGMT_DB_TABLESPACES_ECM" ("ECM_SNAPSHOT_ID", "TABLESPACE_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DB_DATAFILES_ECM_PK" ON "SYSMAN"."MGMT_DB_DATAFILES_ECM" ("ECM_SNAPSHOT_ID", "TABLESPACE_NAME", "FILE_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_SQL_SUMMARY_PK" ON "SYSMAN"."MGMT_SQL_SUMMARY" ("TARGET_GUID", "SNAP_ID", "ADDRESS", "HASH_VALUE", "PLAN_HASH_VALUE", "PIECE") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_SQL_PLAN_PK" ON "SYSMAN"."MGMT_SQL_PLAN" ("TARGET_GUID", "SNAP_ID", "ADDRESS", "HASH_VALUE", "PLAN_HASH_VALUE", "ID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DB_RECUSERSETTINGS_ECM_PK" ON "SYSMAN"."MGMT_DB_RECUSERSETTINGS_ECM" ("ECM_SNAPSHOT_ID", "USER_NAME", "PROBLEM_CODE") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DB_RECSEGMENTSETTINGS_PK" ON "SYSMAN"."MGMT_DB_RECSEGMENTSETTINGS_ECM" ("ECM_SNAPSHOT_ID", "OBJ_TYPE", "OBJ_OWNER", "OBJ_NAME", "OBJ_PARTITION", "OBJ_LOB_COL", "SEGMENT_TYPE", "PROBLEM_CODE") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "SYSMAN"."MGMT_DB_INVOBJS_ECM_PK" ON "SYSMAN"."MGMT_DB_INVOBJS_ECM" ("ECM_SNAPSHOT_ID", "OBJECT_TYPE", "OBJECT_OWNER", "OBJECT_NAME") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE UNIQUE INDEX "APEX_030200"."WWV_FLOW_SW_RESULT_IDX3" ON "APEX_030200"."WWV_FLOW_SW_RESULTS" ("SECURITY_GROUP_ID", "ID", "STATUS") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 1 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "APEX_030200"."WWV_FLOW_SW_D_RESULT_IDX3" ON "APEX_030200"."WWV_FLOW_SW_DETAIL_RESULTS" ("SECURITY_GROUP_ID", "RESULT_ID", "FILE_ID") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 ORA-39083: Object type INDEX failed to create with error: ORA-02158: invalid CREATE INDEX option Failing sql is: CREATE INDEX "APEX_030200"."WWV_FLOW_SW_STMTS_IDX3" ON "APEX_030200"."WWV_FLOW_SW_STMTS" ("SECURITY_GROUP_ID", "FILE_ID", "ISRUNNABLE", "STMT_ID", "STMT_NUMBER") PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPRESS 2 NOCOMPRESS NOLOGGING TABLESPACE "SYSAUX" PARALLEL 1 Processing object type DATABASE_EXPORT/SCHEMA/TABLE/CONSTRAINT/CONSTRAINT
08-16
AND (owner, table_name) IN ( SELECT owner, table_name FROM dba_tables WHERE tablespace_name='USERS' ); -- 验证对象兼容性 EXEC DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_...
电力线目标检测数据集_20251118_042426.zip
12-27
数据集介绍：电力线目标检测数据集 一、基础信息 数据集名称：电力线目标检测数据集 图片数量： 训练集：2898张图片 验证集：263张图片 测试集：138张图片 总计：3299张图片 分类类别： 类别ID: 0（电力线） 标注格式： YOLO格式，包含对象标注信息，适用于目标检测任务。 数据格式：JPEG/PNG图片，来源于空中拍摄或监控视觉。 二、适用场景 电力设施监控与巡检： 数据集支持目标检测任务，帮助构建能够自动识别和定位电力线的AI模型，用于无人机或固定摄像头巡检，提升电力设施维护效率和安全性。 能源与公用事业管理： 集成至能源管理系统中，提供实时电力线检测功能，辅助进行风险 assessment 和预防性维护，优化能源分配。 计算机视觉算法研究： 支持目标检测技术在特定领域的应用研究，促进AI在能源和公用事业行业的创新与发展。 专业培训与教育： 数据集可用于电力行业培训课程，作为工程师和技术人员学习电力线检测与识别的重要资源。 三、数据集优势 标注精准可靠： 每张图片均经过专业标注，确保电力线对象的定位准确，适用于高精度模型训练。 数据多样性丰富： 包含多种环境下的电力线图片，如空中视角，覆盖不同场景条件，提升模型的泛化能力和鲁棒性。 任务适配性强： 标注格式兼容YOLO等主流深度学习框架，便于快速集成和模型开发，支持目标检测任务的直接应用。 实用价值突出： 专注于电力线检测，为智能电网、自动化巡检和能源设施监控提供关键数据支撑，具有较高的行业应用价值。
解释一下final、finally、finalize分别在Java中是做什么用的
12-27
先展示下效果 https://pan.quark.cn/s/185cf7257fd8 Repository for final project
【弹簧阻尼器】基于卡尔曼滤波弹簧质量阻尼器系统噪声测量实时状态估计研究（Matlab代码实现）
最新发布
12-27
【弹簧阻尼器】基于卡尔曼滤波弹簧质量阻尼器系统噪声测量实时状态估计研究（Matlab代码实现）内容概要：本文围绕“基于卡尔曼滤波的弹簧质量阻尼器系统噪声测量与实时状态估计”展开研究，利用Matlab代码实现对系统状态的精确估计。重点在于应用卡尔曼滤波技术处理系统中存在的噪声干扰，提升对弹簧质量阻尼器系统动态行为的实时观测能力。文中详细阐述了系统建模、噪声特性分析及卡尔曼滤波算法的设计与实现过程，展示了滤波算法在抑制测量噪声、提高状态估计精度方面的有效性。同时，该研究属于更广泛的信号处理与状态估计技术应用范畴，适用于复杂动态系统的监控与控制。; 适合人群：具备一定控制系统理论基础和Matlab编程经验的高校研究生、科研人员及工程技术人员，尤其适合从事动态系统建模、状态估计与滤波算法研究的相关人员。; 使用场景及目标：①应用于机械、航空航天、自动化等领域中对振动系统状态的高精度实时估计；②为噪声环境下的传感器数据融合与状态预测提供算法支持；③作为卡尔曼滤波算法在实际物理系统中应用的教学与科研案例。; 阅读建议：建议读者结合Matlab代码实践，深入理解系统建模与滤波器设计的关键步骤，关注噪声建模与滤波参数调优对估计性能的影响，并可进一步拓展至扩展卡尔曼滤波（EKF）或无迹卡尔曼滤波（UKF）在非线性系统中的应用。
这是一个基于Android平台开发的综合性学习与实践项目旨在通过构建一个功能完整的社交类或内容展示类应用来深入掌握现代Android开发的核心技术与架构模式_项目核心功能模块包括.zip
12-27
这是一个基于Android平台开发的综合性学习与实践项目旨在通过构建一个功能完整的社交类或内容展示类应用来深入掌握现代Android开发的核心技术与架构模式_项目核心功能模块包括.zip
The source code of Everything tool is designed for file searching
12-27
代码转载自：https://pan.quark.cn/s/ea7721d7e32e akawaka 一个简单的文件内容搜索工具 支持指定后缀名搜索文件内容 可用于应急响应、内网终端信息收集、代码审计等 image
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