increment function

Prefix and suffix of the auto-increment and auto-increment operators, and suffix of the operator prefix. There is such a question in the exam: 12 inta = 4;(++a) += i; Evaluate the value of a. The correct answer is 10. If you think

MyISAM Data Sheet After you delete the largest numbered record, the number is not reusable. You can use the "auto_increment=n" option to specify a self-increment initial value when building a table. Use the ALTER TABLE TABLE_NAME AUTO_INCREMENT=N

Absrtact: In C language teaching, the self-increment self-subtraction operator is widely used, and it has certain skill and difficulty. Among the many operators, the self-increment decrement operator is the most difficult to understand and the most

MyISAM data table After a record with the maximum number is deleted, the number cannot be reused. You can use the "auto_increment = N" option to specify an auto-increment initial value when creating a table. You can use the alter table table_name

Sequencee can perform auto-increment and auto-increment operations on one or more fields of a single instance, or perform batch auto-increment and auto-increment operations on data that meet the conditions. The auto-increment and auto-increment of a

http://blog.sina.com.cn/s/blog_68431a3b0100y04v.htmlMethod 1:TRUNCATE TABLE nameThis will not only delete all the data, but also reposition the increment fieldMethod 2:Delete from your table nameDBCC CHECKIDENT (your table name, reseed,0)Reposition

In the previous chapters we have been exposed to the overload of the increment operator, at that time we did not distinguish between the previous increment and the ++a difference, under normal circumstances we are not separate from the a++, but it

The auto-increment auto_increment function in mysql is believed to have been used by every phper. This article will share with you the specific viewing and setting methods of the mysql Field Auto-increment function. The auto-increment auto_increment

Prefix increment and decrement operators: + + and-Grammar + + Unary-expression––unary-expression NoteThe prefix increment operator (+ +) adds 1 to its operand, which is the result of an expression. The operand must be a left value that is not a

& Lt; spanstyle = & quot; color: rgb (54,46, 43); font-family: Simsun; font-size: 16px; line-height: 24px; text-indent: 2em; & quot; & gt; when we were studying the first language, for example, the C language programming in a university course,