Insert Into 表名 (字段1,字段2,字段3...) select 语句 不做任何解释,实在是没啥好说的〇_〇,注意别跟create table ...as select一样,insert中的select前面可没as ^_^ 二、Unconditional INSERT ALL 用法 直接拿例子了: INSERT ALL INTO sal_history VALUES(EMPID,HIREDATE,SAL) INTO mgr_history VALUES...
INSERT INTO departments(department_id, department_name, manager_id, location_id) VALUES (70, 'Public Relations', 100, 1700); 语法: Insert Into 表名 (字段1,字段2,字段3...) select 语句 不做任何解释,实在是没啥好说的〇_〇,注意别跟create table ...as select一样,insert中的select前面可没as...
1、无条件多表插入 INSERT [ALL] INTO table1 VALUES (column1, column2 [,...]) INTO table2 VALUES (column1, column2 [,...]) ... subquery; 举例:将emp表中工资高于2000的员工信息分别插入emp_sal和emp_mgr表。 2、有条件多表插入 INSERT [ALL | FIRST] WHEN condition1 THEN INTO table1 (...
(1)无条件的multitable insert: insert all into test_multitable_sale(user_name,sales) values (user_name,sales) into test_multitable_parchese(user_name,sales) values (user_name,parcheses) select tms.user_name,tms.sales,tms.parcheses from test_multitable_source tms; (2)有条件的insert all...
转载Oracle笔记-Multitable INSERT 的用法 http://blog.chinaunix.net/uid-8504518-id-3310531.html 一、Insert基础用法 语法: Insert Into 表名 (字段1,字段2,字段3...) Values (值1,值2,值3...) 例子: INSERT INTO departments(department_id, department_name, ...
ORACLE INSERT ALL 用法 1INSERT ALL 1.1句法 multi_table_insert:: = conditional_insert_clause:: = 1.2multi_table_insert 在多表插入中,将从子查询求值返回的行派生的计算行插入到一个或多个表中。 表别名不是由子查询的选择列表定义的。因此,它们在依赖于选择列表的子句中不可见。例如,尝试引用表达式中的...
“ALL into_clause: Specify ALL followed by multiple insert_into_clauses to perform an unconditional multitable insert. Oracle Database executes each insert_into_clause once for each row returned by the subquery.” 因此,如果在初始状态,子查询改成"select ... from ...
multitableINSERTstatement,即insert all into a … into b … into c …。 文档: Bulk Loads后在线收集统计信息 “Bulk Loads统计信息收集”具体触发场景 INSERT INTO ... SELECT CREATE TABLE AS SELECT “Bulk Loads统计信息收集”目标:更准确的统计信息,提升性能 ...
“ALL into_clause: Specify ALL followed by multiple insert_into_clauses to perform an unconditional multitable insert. Oracle Database executes each insert_into_clause once for each row returned by the subquery.” 因此,如果在初始状态,子查询改成"select ... from a1",由于a1当前是空,返回记录数...
MERGE <hint> INTO <table_name> USING <table_view_or_query> ON (<condition>) WHEN MATCHED THEN <update_clause> WHEN NOT MATCHED THEN <insert_clause>; multiTable Inserts功能: Multitable inserts allow a single INSERT INTO .. SELECT statement to conditionally, or non-conditionally, insert into...