For this, PostgreSQL provides three character types: CHAR(n) VARCHAR(n) TEXT. Unfortunately, the TEXT type is not part of the types that are managed by the SQL standard. This means that if we want to use JPA annotations in our persistence entities, we may have a problem. This is becaus...
Cloud OS…for databases Want to see how your organization can deploy databases, virtual machines with SQL Server instances... Author: Shashank Pawar Date: 09/08/2013 Teched Australia 2013 – Day One A great start to Teched 2013 with a packed session by Dandy Weyn on SQL Server 2014. Peop...
I want to get tables' names of a particular database using a general query which should suitable for all database types. I have tried following: SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE' But it is giving table names of all databases of a particular...
该内容仅适用于 OceanBase 数据库企业版。OceanBase 数据库社区版仅提供 MySQL 模式。 字段说明 字段名称类型是否可以为 NULL描述 OWNERVARCHAR2(128)NO索引所有者 INDEX_NAMEVARCHAR2(128)NO索引名称 TABLE_OWNERVARCHAR2(128)NO索引对象的所有者 TABLE_NAMEVARCHAR2(128)NO索引对象的名称 ...
When the DNS began, the system was much smaller. If you think about it, today’s domain name system comprises many servers—not just nameservers— communicating with each other. All these DNS servers (there are millions worldwide) need to agree with each other’s databases to validate yo...
fortios_system_dns_database – Configure DNS databases in Fortinet’s FortiOS and FortiGate fortios_system_dns_server – Configure DNS servers in Fortinet’s FortiOS and FortiGate fortios_system_dscp_based_priority – Configure DSCP based priority table in Fortinet’s FortiOS and FortiGate forti...
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简体中文 登录/ 注册 免费试用 文档中心 OceanBase 数据库 V4.1.0 参考指南 系统参考 系统视图(Oracle 模式) 字典视图 ALL_DIRECTORIES 更新时间:2023-07-28 02:45:58 编辑 功能 展示当前用户可访问的所有目录。 功能适用性 该内容仅适用于 OceanBase 数据库企业版。OceanBase 数据库社区版仅提供 MySQL 模式。
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若要傳回類型的名稱,請聯結至 此數據行上的 sys.types 目錄檢視。 max_length smallint 數據行的最大長度(以位元組為單位)。 -1 = 數據行數據類型為 varchar(max)、 nvarchar(max)、 varbinary(max)或xml。 對於文字 數據行,max_length值會是 16,或是sp_tableoption 「數據列中的文字」所設定的...