Theuser_constraintsare utilized to display the names of the constraints in the database. Theall_constraintsprovides the metadata about all constraints that are accessible to the current user, regardless of the
Constraints on a table in Oracle can be found using the below views user_constraints: It provides information about constraints owned by the current user. all_constraints:shows information about constraints accessible to the current user, including those owned by other users. dba_constraints: provides...
C Oracle待機イベント D Oracleエンキュー名 E 統計情報の説明 F バックグラウンド・プロセス 索引 ALL_CONSTRAINTSは、現行のユーザーがアクセスできる表の制約定義を示します。 関連ビュー DBA_CONSTRAINTSは、データベース内の制約定義をすべて示します。
WHERE TABLE_NAME = 'EMPLOYEES' AND CONSTRAINT_NAME IN ( SELECT CONSTRAINT_NAME FROM all_constraints WHERE TABLE_NAME = 'EMPLOYEES' AND CONSTRAINT_TYPE = 'U'); 该语句将返回所有属于EMPLOYEES表的唯一性约束列的名称。 总的来说,all_constraints表是Oracle数据库中一个非常重要的系统表,在日常的数据库...
ALL_CONSTRAINTS ALL_CONSTRAINTS 更新时间:2025-05-06 15:36:23 编辑 分享 功能描述 展示当前用户可访问的所有表的约束信息。 功能适用性 该视图仅适用于 OceanBase 数据库 Oracle 模式。 字段说明 字段名称类型是否可以为 NULL描述 OWNER VARCHAR2(128) NO 约束的拥有者 CONSTRAINT_NAME VARCHAR2(128) NO 约束...
SYS.ALL_CONSTRAINTS的定义如下: CREATE OR REPLACE VIEW ALL_CONSTRAINTS (owner, constraint_name, constraint_type, table_name, search_condition, r_owner, r_constraint_name, delete_rule, status, deferrable, deferred, validated, generated, bad, rely, last_change, index_owner, index_name, invalid, ...
ALL_CONSTRAINTS 更新时间:2024-11-20 16:02:18 分享 功能描述 查看用户可访问的所有表的约束信息。 功能适用性 该视图仅适用于 OceanBase 数据库 Oracle 模式。 字段说明 字段名称类型是否可以为 NULL描述 OWNER VARCHAR2(128) NO 约束的拥有者 CONSTRAINT_NAME VARCHAR2(128) NO 约束名字 CONSTRAINT_TYPE VARCHA...
SELECT constraint_name, table_name, r_owner, r_constraint_name FROM all_constraints WHERE...
C.29 USER_CONSTRAINTS C.30 USER_IND_COLUMNS C.31 USER_INDEXES C.32 USER_OBJECTS C.33 USER_TAB_COLUMNS C.34 USER_TAB_COMMENTS C.35 USER_TABLES C.36 USER_USERS C.37 USER_VIEWS D Initialization Parameters Index ALL_CONSTRAINTSdata dictionary for Oracle Database Gateway for SQL Server. ...
Oracle Database - Enterprise Edition - Version 19.3.0.0.0 and later: ORA-00955: Name is already used by an existing object even though object does not exist in all_c