-- 查询日志的SQL语句 SELECT [Transaction ID], [Operation], [Table Name], [Old Values], [New Values] FROM fn_dblog(NULL, NULL) WHERE [Operation] IN ('LOP_INSERT_ROWS', 'LOP_MODIFY_ROW', 'LOP_DELETE_ROWS') 1. 2. 3. 4.
结果集中行号非法(INVALID_ROW_COUNT_IN_RESULT_OFFSET_CLAUSE) 2202H 非法抽样参数(ERRCODE_INVALID_TABLESAMPLE_ARGUMENT) 2202G 非法重复抽样(ERRCODE_INVALID_TABLESAMPLE_REPEAT) 22009 非法时区显示值(INVALID_TIME_ZONE_DISPLACEMENT_VALUE) 2200C 非法使用转义字符(INVALID_USE_OF_ESCAPE_CHARACTER) 2200G 最相关类...
SQL> INSERT INTO tb_cust SELECT 10,'Jay' FROM DUAL; 1 row created. SQL> INSERT INTO tb_cust SELECT 10,'SAM' FROM DUAL; 1 row created. SQL> COMMIT; COMMIT * ERROR at line 1: ORA-02091: transaction rolled back ORA-00001: unique constraint (ROBINSON.PK_TB_CUST_CUSTID) violated --...
1 row affected (0.13 sec) 指定部分字段添加值 mysql> insert into stu(name,classid) value('lisi','lamp138'); Query OK, 1 row affected (0.11 sec) 不指定字段添加值 mysql> insert into stu value(null,'wangwu',21,'w','lamp138'); 批量添加值 mysql> insert into stu values -> (null,...
行(row):表中的一个记录 主键(primary key):一列(或一组列),其值能够唯一标识表中每一行 SQL 语法 SQL(Structured Query Language),标准 SQL 由 ANSI 标准委员会管理,从而称为 ANSI SQL。各个 DBMS 都有自己的实现,如 PL/SQL、Transact-SQL 等。
No other transactions can modify the data while shared (S) locks exist on the resource. Shared (S) locks on a resource are released as soon as the read operation completes, unless the transaction isolation level is set to repeatable read or higher, or a locking hint is used to retain ...
( select st ,en ,numbers ,row_number() over(partition by st order by st) -1 as rn -- 构造排序字段辅助计算 from (-- 构造起始差长度+1的重复序列 select st ,en ,regexp_extract(repeat(concat(st,','),int(abs(en-st)+1)),'(.*),',1) as number_repeat_list from temp )a ...
1.使用SQL语句ALTER TABLE修改curriculum表的“课程名称”列,使之为空。 mysql>altertablecurriculum modify 课程名称varchar(50)null; Query OK,0rowsaffected (0.02sec) Records:0Duplicates:0Warnings:0 2.使用SQL语句ALTER TABLE修改grade表的“分数”列,使其数据类型为decimal(5,2)。
表データは、<catalog>.<schema>..datという形式の名前のファイルにエクスポートされます。ファイルの形式は、data1#<COL_DEL> #data2#<COL_DEL>…<ROW_DEL>(COL_DELとROW_DELは移行オフライン・プリファレンスの設定からのもの)です。 DB2デー...
ALTER MASKING POLICY policy_name MODIFY ( filter_group_clause ); ALTER MASKING POLICY policy_name DROP FILTER; ALTER MASKING POLICY policy_name { ENABLE | DISABLE }; where masking_actions can be: masking_function ON LABEL(label_name [, ... ]) ...