Example: SQL UPDATE Statement Update Multiple Values in a Row We can also update multiple values in a single row at once. For example, -- update multiple values in the given rowUPDATECustomersSETfirst_name ='Johnny', last_name ='Depp'WHEREcustomer_id =1; Run Code Here, the SQL command ...
UPDATE Customers SET ContactName = 'Alfred Schmidt', City= 'Frankfurt' WHERE CustomerID = 1; The following SQL statement will update the contactname to "Juan" for all records where country is "Mexico":Example UPDATE Customers SET ContactName='Juan' WHERE Country='Mexico'; Note...
To update the vendor name, type: Update TrnVendor Set Name = 'Genie R Corp.' Where VendId = 'TV001';To check the vendor name to see that it has changed, type: Select VendId, Name from TrnVendor where VendId = 'TV001';To roll back the change, type: ...
SET titles.ytd_sales = t.ytd_sales + s.qty FROM titles t, sales s WHERE t.title_id = s.title_id AND s.ord_date = (SELECT MAX(sales.ord_date) FROM sales) EXAMPLE update item_master i set i.contral_ma= ( select max(b.control_ma) from base_complex b where b.code=i.hs_code...
UPDATE Table The following SQL statement updates the first customer (CustomerID = 1) with a new contact personanda new city. ExampleGet your own SQL Server UPDATECustomers SETContactName ='Alfred Schmidt', City='Frankfurt' WHERECustomerID =1; ...
一、更新(Update) 1.批量更新SQL UPDATE categories SET display_order = CASE id WHEN 'id1 'THEN 'value1 ' WHEN 'id2 'THEN 'value2' WHEN 'id3 'THEN 'value3' END WHERE id IN (id1,id2,id3) 1. 2. 3. 4. 5. 6. 这句sql的意思是,更新display_order 字段,如果id=id1 则display_orde...
8、修改所有的用户/行信息 : update user set salary=5000; // 设置所有列salary值为5000 再次查询: 9、用where限定某一行: update user set name='benben' where id=1 ; // 只将id=1的用户名字改为 benben 再查看整张表 10、删除某一列 : alter table user drop salary; ...
UPDATEusersSETname='New Name',age=30,gender='Male',email='newemail@example.com'WHEREid=1 1. 在上述示例中,我们使用UPDATE语句更新了"name"、“age”、"gender"和"email"字段的值,并通过WHERE子句指定了要更新的记录的条件。 执行SQL语句 一旦我们编写好了SQL语句,就可以使用SqlCommand类来执行它们。下面是...
数据泵导入需要 dmp 文件才可以,执行 insert 语句插入需要 .sql 文件才行,当然外部表的形式也可以,但外部表没法编辑且文件位于数据库外,不能 update 编辑数据则考虑 sqlldr 直接加载到 Oracle 数据库中更为方便。 SQL*Loader 原理 将外部数据(比如文本型)导入Oracle 数据库中。(可用于不同类型数据库数据迁移)...
In this example, the SQL UPDATE statement updates both the first and last name columns for a single customer: UPDATE customers SET first_name= ‘Jack’, last_name = ‘Smith’ WHERE id = 5; Just as in the previous UPDATE statements, the WHERE clause filters out all other customers in ...