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Course Introduction：PHP source code for batch review and batch deletion

2016-07-06 comment 0  1712

Course Introduction：PHP photo album function implementation (including PHP image upload, background management, browsing and deletion) tutorial examples. PHP photo album function implementation (including PHP image upload, background management, browsing and deletion) tutorial examples, Photo album function implementation (including PHP image upload, background management, browsing and deletion) tutorial examples include five

2016-07-13 comment 0  1902

Course Introduction：The article discusses using Photoshop's Batch Processing to automate repetitive image editing tasks. It covers creating actions, setting up batch processes, and optimizing workflow settings for efficiency.

2025-03-18 comment 0  905

Course Introduction：Three ways to clear database tables: TRUNCATE TABLE: fast, but cannot rollback, does not handle foreign key constraints, and has a small amount of logs. DELETE FROM: Rollable, handles foreign key constraints, large log volume, and performance bottlenecks. Conditional deletion and batch deletion: Flexible to reduce performance bottlenecks.

2025-04-09 comment 0  347

Course Introduction：The best way to delete big data depends on the specific situation. Direct deletion methods include TRUNCATE TABLE and DELETE FROM TABLE WHERE, while batch deletion methods include DELETE ... IN (SELECT ...) and using cursors. Other methods include partition deletion, foreign key constraints, and truncation and recreation. The specific choice depends on the table size, the complexity of the deletion condition, the recovery data requirement and acceptable processing time.

2025-04-09 comment 0  400

Course Elementary  13764

Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.

Course Elementary  82273

Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).

Course Elementary  13140

Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.

Course Elementary  24589

Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.

Course Elementary  27445

Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.