Course Intermediate  11251

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  17584

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  11299

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.

Course Introduction：In mysql, hint refers to "query optimization hint", which will prompt the optimizer to generate an execution plan in a certain way for optimization, making the user's SQL statement more flexible; Hint can be based on the connection sequence, method, and access of the table. Rules such as paths and parallelism have an effect on DML (Data Manipulation Language) statements.

2022-06-27 comment 0  3462

Course Introduction：Compiler Hints for Branch Prediction in GCC. GCC provides a compiler hint, __builtin_expect(), to convey the expected outcome of a branch. This hint can be used to force a specific branch prediction when performance optimizations are needed. Modern p

2024-10-24 comment 0  661

Course Introduction：已经定义hint=0为啥还要if(hint=0)

2016-06-23 comment 0  1066

Course Introduction：Hint in mysql is a special comment or syntax structure used to provide additional information or guidance to the query optimizer. It can be used in SQL query statements to affect the execution plan of the query or the behavior of the optimizer. Common hints include: 1. STRAIGHT_JOIN, forces the use of the table order specified in the connection order for connection operations; 2. IGNORE INDEX, instructs MySQL to ignore a certain index; 3. INDEX HINT, specifies to select an index among multiple indexes to execute the query.

2023-07-25 comment 0  2468