select count(*) from ((select (case when (instr(',' || wm_concat(type) || ',', ',develop-plan,') 0) then 'develop-plan' else 'unRead' end) type, max(id) id, name, node_level, project, end, max(created_date) created_date, center, year_flg,
select count(*) from ((select (case when (instr(',' || wm_concat(type) || ',', ',develop-plan,') > 0) then 'develop-plan' else 'unRead' end) type, max(id) id, name, node_level, project, end, max(created_date) created_date, center, year_flg, sequence, min(isRead) isRead, MyReplace(wm_concat(msgCreateDate), ',') msgCreateDate, wm_concat(group_name), max(planId), 0 owe_days, 0 owe_money from (select 'develop-plan' as type, node.node_id as id, template_node.node_name as name, template_node.node_level, project.project_name as project, node.schedule_end_date as end, warning.CREATED_DATE as created_date, '' as center, '' as year_flg, ROW_NUMBER() OVER(PARTITION BY node.templet_id, project.project_project_id ORDER BY warning.created_date ASC) as sequence, (select min(t.is_read) from plan6_message_user_read t where t.node_id = node.node_id and t.need_reader = 'zhangch' group by t.node_id) isRead, '' msgCreateDate, info.name group_name, info.biz_cd planId, 0 owe_days, 0 owe_money from plan6_warning warning, plan6_node node, project_distribution info, project_period pp, project_project project, plan6_templet_node template_node where warning.node_id = node.node_id and node.plan_id = info.biz_cd and info.project_period_id = pp.project_period_id and pp.is_enabled = 1 and pp.project_project_id = project.project_project_id and template_node.node_id = node.templet_id and info.if_in_plan = 1 and (warning.charger_cd = 'zhangch' OR node.charger_cd = 'zhangch' OR node.center_manager_cd = 'zhangch' OR project.project_charger_cd = 'zhangch' OR project.project_charger_cd2 = 'zhangch' OR project.project_charger_cd_bis = 'zhangch' OR ('wubc' = 'zhangch' AND template_node.node_level in (1, 2)) OR (('xuhf' = 'zhangch' OR 'zhanghf' = 'zhangch') and template_node.node_level = 1)) and warning.stat = 2 and node.status = 1 and node.is_enabled 0 and warning.stat = 2 union select 'unRead' tyep, node.node_id id, template_node.node_name as name, template_node.node_level, project.project_name as project, node.schedule_end_date as end, to_date('', 'yyyymmdd hh24:mi:ss') as created_date, '' as center, '' as year_flg, ROW_NUMBER() OVER(PARTITION BY node.templet_id, project.project_project_id ORDER BY r.created_date ASC) as sequence, r.is_read isRead, to_char(r.created_date, 'yyyymmdd hh24:mi:ss') msgCreateDate, info.name group_name, info.biz_cd planId, 0 owe_days, 0 owe_money from plan6_message_user_read r, plan6_node node, project_distribution info, project_period pp, project_project project, plan6_templet_node template_node where r.node_id = node.node_id and node.plan_id = info.biz_cd and info.project_period_id = pp.project_period_id and pp.is_enabled = 1 and pp.project_project_id = project.project_project_id and template_node.node_id = node.templet_id and info.if_in_plan = 1 and node.is_enabled 0 and r.need_reader = 'zhangch' and r.is_read = '0') warning where warning.sequence = 1 group by name, node_level, project, end, center, year_flg, sequence) union (select 'oa_meeting' as type, metting.oa_meeting_id as id, TO_CHAR(metting.business) as name, 10 as node_level, '' as project, metting.target_date as end, warning.created_date as created_date, '' as center, '' as year_flg, 0 as sequence, '' isRead, '' msgCreateDate, '' group_name, '' planId, 0 owe_days, 0 owe_money from oa_meeting metting, plan_warning warning where metting.oa_meeting_id = warning.target and metting.HIDDEN_FLG = 0 and metting.status in (1, 2, 4) and metting.target_date is not null and instr(';' || warning.responsible_person, ';zhangch;') > 0));
|
报错如下:
ORA-01790的错误,查到是因为报错的那个wm_concate后面的字段不是group by的字段。

oracle asm指的是“自动存储管理”,是一种卷管理器,可自动管理磁盘组并提供有效的数据冗余功能;它是做为单独的Oracle实例实施和部署。asm的优势:1、配置简单、可最大化推动数据库合并的存储资源利用;2、支持BIGFILE文件等。

方法:1、利用“select*from user_indexes where table_name=表名”语句查询表中索引;2、利用“select*from all_indexes where table_name=表名”语句查询所有索引。

在Oracle中,可利用lsnrctl命令查询端口号,该命令是Oracle的监听命令;在启动、关闭或重启oracle监听器之前可使用该命令检查oracle监听器的状态,语法为“lsnrctl status”,结果PORT后的内容就是端口号。

在oracle中,可以利用“TO_SINGLE_BYTE(String)”将全角转换为半角;“TO_SINGLE_BYTE”函数可以将参数中所有多字节字符都替换为等价的单字节字符,只有当数据库字符集同时包含多字节和单字节字符的时候有效。

在oracle中,可以利用“drop sequence sequence名”来删除sequence;sequence是自动增加数字序列的意思,也就是序列号,序列号自动增加不能重置,因此需要利用drop sequence语句来删除序列。

在oracle中,可以利用“select ... From all_tab_columns where table_name=upper('表名') AND owner=upper('数据库登录用户名');”语句查询数据库表的数据类型。

方法:1、利用“LOWER(字段值)”将字段转为小写,或者利用“UPPER(字段值)”将字段转为大写;2、利用“REGEXP_LIKE(字符串,正则表达式,'i')”,当参数设置为“i”时,说明进行匹配不区分大小写。

方法:1、利用“alter system set sessions=修改后的数值 scope=spfile”语句修改session参数;2、修改参数之后利用“shutdown immediate – startup”语句重启服务器即可生效。


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