There are other ways to load data into a SQL Server table such as INSERT statements, but SqlBulkCopy offers a significant performance advantage over them.
即使一个单词是INSERT,你仍然会将其视为CREATE操作,因为它将创建数据。
Even if a word is INSERT you will still think of that as a Create operation because it will create data.
REPLACE的语法和INSERT非常的相似,如下面的REPLACE语句是插入或更新一条记录。
The syntax of REPLACE and INSERT are very similar, the REPLACE statement as the following is to insert or update a record.
如果该语句为SELECT查询或INSERT语句,则不需要锁定任何行,因为没有数据需要被改变。
If the statement is a SELECT query or INSERT statement, you do not lock any rows because no data needs to be changed.
Although an attacker's INSERT INTO query will only write data to the database, it will still allow them to extract sensitive information and gain access.
如果语句为INSERT、UPDATE或DELETE,将取消语句所做的任何更改。
If the statement is an INSERT, UPDATE, or DELETE, any changes made by the statement will be canceled.
然后,mysql_query()函数执行INSERTINTO语句,一条新的记录会添加到数据库表中。
Then, the mysql_query() function executes the INSERT INTO statement, and a new record will be added to the"Persons" table.
(Technically SELECT and INSERT are also allowed, but the documentation doesn't mention them because they aren't affected by incoming foreign key constraints.).
您也可以使用INSERT命令将数据添加到您的表中,尽管这与使用COPY命令相比的效率低得多。
You can also add data to your tables using INSERT commands, though it is much less efficient than using COPY.".
从基表中的所有NOTNULL列必须包含在视图是为了使用INSERT查询功能。
All NOT NULL columns from the base table must be included in the view in order for the INSERT query to.
如果你从不同客户插入很多行,能通过使用INSERTDELAYED语句得到更高的速度。
If you are inserting a lot of rows from different clients, you can get higher speed by using the INSERT DELAYED statement.
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