# 模糊批量替换关键字 update blog_chat set messages=REPLACE(messages,’admin’,’管理员’) where messages like ‘%admin%’ 语法REPLACE ( string_expression , string_pattern , string_replacement ) 参数string_expression 要搜索的字符串表达式。string_expression 可以是字符或二进制数据类型。 string_pattern...
The REPLACE() function can also be used to update the column data of the table. Consider the following Employee data where DepartmentID=60.Now, the following updates the domain of all email to 'companyHR.com' using the REPLACE() function. ...
HOST_NAME() --函数返回服务器端计算机的名称 IDENTITY(<data_type>[, seed increment]) [AS column_name]) --IDENTITY() 函数只在SELECT INTO 语句中使用用于插入一个identity column列到新表中 /*select identity(int, 1, 1) as column_name into newtable from oldtable*/ ISDATE() --函数判断所给定...
master..sysprocesses where SPID = @@SPID', @counter INT=1, @Max INT, @Sql VARCHAR(mAX);IF OBJECT_ID('TempDB..#TrigUpdate') IS NOT NULL DROP TABLE #TrigUpdate;CREATE TABLE #TrigUpdate ( SqlVar VARCHAR(MAX) , RowID INT );INSERT INTO #TrigUpdateSELECT REPLACE(REPLACE(t.definition, @...
replace(str,s1,s2)用s2替换s中的s1 UPDATE new_prd_products_add_clean SET theme_ch = REPLACE(theme_ch, '-', '、'); -小写,大写lower(), upper() UPDATE artist_ch SET personName = LOWER(personName); -转数据类型 int转string:ltrim(列名) ...
create procedure update_salary_if (in employee_number char(6), inout rating smallint) language sql begin declare not_found condition for sqlstate '02000'; declare exit handler for not_found set rating = -1; if rating = 1 then update employee ...
SQL20259N 無法從全選的 FROM 子句中資料變更陳述式的目標選取直欄 column-name。 解說 選取了一個無法指定在此查詢之選取清單中的直欄。此直欄是以視圖或全選中的一個直欄為基礎,而視圖或全選為 INSERT 或 UPDATE 陳述式(使用 NEW TABLE 或 FINAL TABLE 在 FROM 子句中指定)的目標。選取的直欄是根據: ...
SQL语句update修改数据库字段 2019-12-04 16:06 −1、例如修改数据表t_email 中email字段中yahoo.cn 修改为163.com 查询语句执行如下: UPDATE `t_email` t SET t.`email` = REPLACE(t.`email`, 'yahoo.cn', '163.com'); 2、更新 runoob_id ... ...
mysql> UPDATE string_tbl -> SET vchar_fld = 'This is a piece of extremely long varchar data'; ERROR 1406 (22001): Data too long for column 'vchar_fld' at row 1 自MySQL 6.0以来,默认的处理方式是“strict”模式,表示在出现问题时抛出异常,而在旧版本的服务器中,默认方式是截断字符串并发出警...
scott@ORCL> create or replace procedure update_sal 2 (no number,salary varchar2) 3 as 4 begin 5 update emp set sal=salary where empno=no; 6 end; 7 / Procedure created. scott@ORCL> alter session set plsql_warnings='enable:performance'; ...