Course Intermediate 10951
Course Introduction:"Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.
Course Advanced 17019
Course Introduction:"Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.
Course Advanced 10715
Course Introduction:"Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.
php - In mysql, is it more efficient to use int type as a primary key field than char type?
2017-05-25 15:08:20 0 2 758
2024-03-26 12:53:22 0 1 311
How to compare the size of two String type timestamps in JAVA?
2017-06-12 09:27:09 0 4 1255
2023-12-23 14:41:03 0 1 403
2017-06-06 09:53:56 0 1 1350
Course Introduction:1. How to convert Number type data into Date type? In some programming languages or databases, Number type data can be converted to date type through the following steps: Determine the unit of the timestamp: Determine whether the Number type data represents seconds, milliseconds or other timestamp units. Use appropriate functions for conversion: Convert Number type data to Date type according to the functions provided by the programming language or database. For example, in Java you can use Date or LocalDateTime classes. longtimestamp=1612137600;//Example timestampDatedate=newDate(timestamp*1000);//Convert to Date pair
2024-01-23 comment 0 1177
Course Introduction:In Golang, the byte type is an unsigned 8-bit integer, while the int type is a signed integer. Therefore, when we need to convert the byte type to the int type, we need to perform type conversion. Golang provides some built-in type conversion functions that can easily convert values of different types into each other. For byte to int conversion, we can use the built-in int function to convert the byte type to the int type. The sample code is as follows: ```gopackage
2023-04-24 comment 0 2321
Course Introduction:In JavaScript, you can use the typeof operator to get whether a variable is of numeric type or string type. The syntax is "typeof variable"; if the return value is "number", then the variable is of numeric type. If the return value is "string", then The variable is of type string.
2021-11-24 comment 0 3656
Course Introduction:In HTML, type means type and is a tag attribute, mainly used to define the type of tag element or the MIME type of the document (script); for example, in the input tag, the type attribute can specify the type of the input element, in the script tag The type attribute can specify the MIME type of the script.
2020-12-24 comment 0 26077
Course Introduction:PHP is a server-side scripting language and one of the most popular web development languages. In PHP, the int type represents the integer type. The int type in PHP refers to the integer type, that is, a numerical type without a decimal point. Variable declarations in PHP do not need to specify the data type, but the data type is automatically determined based on the content of the assignment. Let’s look at some specific content about the int type in PHP: 1. Definition of the int type In PHP, the keyword int is used to represent the integer type, for example: ```php$a = 10;
2023-05-07 comment 0 975