INSERT INTO orders (ID, customer_name, order_date, total_orders) SELECT ID, customer_name, order_date, total_orders FROM orders WHERE customer_name = 'Jack'We replace VALUES statements using SELECT… FROM. The SELECT statement will support all the keys like a regular select query like WHERE...
SELECT * FROM myTable WHERE myID = @myID INSERT INTO myTable (c1, c2, c3, c4) VALUES (@c1, @c2, @c3, @c4) 在客户端代码中撰写使用参数的代码,例如: ADO.NET SqlCommand sqlcmd = new SqlCommand("INSERT INTO myTable (c1, c2, c3, c4) VALUES (@c1, @c2, @c3, @c4)", sqlconn)...
删除表: DROP TABLE CustCopy; 重命名表: RENAME Table oldTable TO newTable; 插入数据 插入整行或部分行: INSERT INTO...插入部分行时,把要插入的列填入 Customers 括号内,与VALUES内容一一对应,没有提到的列默认NULL或其他默认值。...此处(从同一个表中查询)可以用WHERE , OR代替。 常用作从不同表中...
Example: Insert Row Into a Table In SQL, theINSERT INTOstatement is used to insert new row(s) into a database table. -- insert a row in the Customers tableINSERTINTOCustomers(customer_id, first_name, last_name, age, country)VALUES(5,'Harry','Potter',31,'USA'); Run Code Here, the...
Insert a line There are two ways of doing this. 1º You can insert a line by specifying all the columns. In this case, the syntax is as follows: INSERT INTO table VALUES (‘value 1’, ‘value 2’, …) If you choose this option, be sure to respect the order of the columns. ...
INSERT INTO sales.big_orders (id, full_name, address, total) SELECT id, full_name, address, total FROM sales.total_orders WHERE total > 10000; 3. Insert top rows You can choose top n rows from the table_b to insert into table_a by this query: ...
INSERTINTObookshelf(book_id,book_name,book_type,author,intime)VALUES(1,'飘','长篇小说','玛格丽特·米切尔',SYSDATE);COMMIT; 增的基本语法:insert into 表名 (需要插入的列名,用逗号隔开) values (对应列名的值); 插入数据 通过sql查询发现,这本书《飘》已经放入了书架上,可供大家借用和查看。
1. Specify both the column names and the values to be inserted: INSERTINTOtable_name(column1,column2,column3, ...) VALUES(value1,value2,value3, ...); 2. If you are adding values for all the columns of the table, you do not need to specify the column names in the SQL query. ...
Eg:insertinto表名values(值1,值2,...值n); C: 除了数字类型,其他类型需要使用引号(单双都可以)引起来 2.delete:--语法deletefrom表名 [where条件]--注意若不加条件,则删除表中所有记录--删除所有记录的两种方式A:deletefrom表名;-- 不推荐使用,有多少条记录就会执行多少次删除操作B:truncatetable表名;-...
INSERT INTO mytable (name, age) VALUES ('John', 30);INSERT INTO mytable (name, age) VALUES ('Jane', 25); 这两个命令将向“mytable”表中插入两条数据。 查询数据: SELECT * FROM mytable; 这个命令将查询“mytable”表中的所有数据,并显示结果。