INSERTINTOdmhr.dup_empSELECTemployee_id,employee_name,identity_card,salary,department_idFROMdmhr.employeeWHEREdepartment_id=102ANDsalary<9000;INSERTINTOdmhr.emp_salarySELECTemployee_id, salary+2000FROMdmhr.dup_emp;INSERTINTOdmhr.emp_salaryVALUES(1108,4100); 输出结果如下图所示: 执行merge 语句,示例...
插入数据 insert into SYSDBA.STUDENT VALUES(1,'小王','女','人文系','2022-05-19','18') commit 查看数据 SELECT * FROM SYSDBA.STUDENT; 修改数据 UPDATE SYSDBA.STUDENT SET DEPT='电子信息系' WHERE SNAME='小王'; SELECT * FROM SYSDBA.STUDENT; 删除数据 DELETE FROM SYSDBA.STUDENT WHERE SNAME='...
SPOOL OFF 7、id自增的表,要导入数据:Only if specified in the column list and SET IDENTITY_INSERT is ON, then identity column could be as 两个步骤: (1)SET IDENTITY_INSERT 表名 on; (2)insert into 表名(id, 列1,列2,... 列n)select * from 另一个表 limit 10;(意思是, 目标表必须要...
12、DML语句 新增:insert into test.dept values('1106', 'aaaaa', '9002', 9); 删除:delete test.dept where department_id='1106'; MERGE语法:使用merge into 语法可以合并update 和insert 语句 merge into test.t1 using test.t12 on (test.t1.c1=test.t12.c3) when MATCHED THEN update set test.t...
|[ALL|FIRST]<multi_insert_into_condition_list> [<multi_insert_into_else>]<查询表达式> <multi_insert_into_list>::= <insert_into_single>{<insert_into_single>} <insert_into_single>::= INTO <tv_name> [<t_alias>] [(<列名>{,<列名>})][VALUES ] ::= (<expr...
SQL> insert into dmhr.city(city_id,city_name,region_id) values ('HS','洪山',7); 1. 2. 3. 4. 5. 6. 7. 案例4:修改用户TEST密码为永不过期 SQL> alter user TEST limit password_life_time unlimited; 操作已执行 已用时间: 2.473(毫秒). 执行号:5. ...
INSERT 语句有两种形式:一种形式是值插入,即构造一行或多行值,并将它们插入表中;另一种形式是查询插入,即通过返回一个查询结果集以构造要插入表的一行或多行值 INSERT INTO department(department_id,department_name) VALUES('990','数据分析事业部'), ('991','人工智能事业部'); 查询插入 ...
insertintotest(user_id,login_name)VALUES (4,'test3'), (5,'test4'); 执行结果如图 如需快速复制表结构且不需要数据,如需表机构和数据的话 WHERE 1 = 1; 或者不要WHERE条件 CREATETABLEtest2ASSELECT*FROMtestWHERE1=0; 查询表数据库看到
insert into tbl_test values (2,repeat('中', 128)) 执行失败:列[NAME]长度超出定义 -- 测试发现,中文字符修改为 <= 128/3 的长度可插入 insert into tbl_test values (2,repeat('中', 42)) -- 查看字符长度和字节长度 SQL> SELECT ID,LENGTH(name),CHAR_LENGTH(name),OCTET_LENGTH(name) FROM ...
只需插入 name 列的值String sql_insert = "insert into PRODUCTION.PRODUCT_CATEGORY(name) values('厨艺')";//执行添加的 SQL 语句state.execute(sql_insert);//删除//定义删除的 SQL 语句//String sql_delete = "delete from PRODUCTION.PRODUCT_CATEGORY where name = '厨艺'";//执行删除的 SQL 语句/...