insert into tb_user1 values (1, 'user11'); insert into tb_user1 values (2, 'user12'); insert into tb_user1 values (3, 'user13'); commit; 1. 2. 3. 4. 5. 6. 7. create table table_name as select from SQL> create t
第二句(insert into select from)要求目标表target_table存在,由于目标表已经存在,所以我们除了插入源表source_table的字段外,还可以插入常量,如sql语句: insertintotarget_table(column1,column2)selectcolumn1,5fromsource_table 例中的:5; 无论是create table as select * from还是insert into select from, from...
Oracle INSERT INTO SELECT examples A) Insert all sales data example Let’s create a table named sales for the demonstration. CREATE TABLE sales ( customer_id NUMBER, product_id NUMBER, order_date DATE NOT NULL, total NUMBER(9,2) DEFAULT 0 NOT NULL, PRIMARY KEY(customer_id, product_id...
正是因为这个缺点,我现在已经投向了insert into select的怀抱。 2、insert into select truncatetabletablename;insertintotablenameselect*fromtab1;commit; 1 2 3 4 这种方法其实是通过truncate一行一行地清空数据,再通过insert into一行一行地写入的。你会发现用create as复制表,会提示你执行完成,而用insert into,...
into ，但是可以使用 insert into ... select 当然也可以使用 create table <new table> select *...
Insert multiple rows into a table# To insert multiple rows into a table, you use the following OracleINSERT ALLstatement: INSERTALLINTOtable_name(col1,col2,col3)VALUES(val1,val2, val3)INTOtable_name(col1,col2,col3)VALUES(val4,val5, val6)INTOtable_name(col1,col2,col3)VALUES(val7,...
INSERT INTO EMPS SELECT EMPLOYEE_ID, FIRST_NAME, SALARY, DEPARTMENT_ID FROM EMPLOYEES WHERE SALARY > 10000; This example produces the same result as the preceding example but uses a subquery in theDML_table_expression_clause. INSERT INTO (SELECT EMPLOYEE_ID, FIRST_NAME, SALARY,...
SQL> CREATE TABLE hash_example( hash_key_column date,data varchar2(20))PARTITION BY HASH (hash_key_column)( partition part_1 tablespace p1,partition part_2 tablespace p2); 1. 注意: (1)如果使用散列分区,你将无从控制一行最终会放在哪个分区中。Oracle会应用散列函数,并根据散列的结果来确定行会放...
由此,其余可能插入多行数据的语法也可以通过这套Table AM接口使用批量插入能力。Heap AM的单行插入接口和批量插入接口同时支持堆表的逻辑复制。 使用说明 目前支持使用批量插入Table AM的语法如下: CREATE TABLE AS SELECT INTO 说明 当前语法使用批量插入接口wal_level参数值有关,当该值为logical时,以上语法默认使用批...
The city table has five columns: ID, Name, CountryCode, District, and Info. Each value must match the data type of the column it represents. Insert a Partial Record The following example inserts values into the ID, Name, and CountryCode columns of the city table. ...