The SQL HandbookThe SQL Handbook Conclusion 2 Preface The SQL Handbook follows the 80/20 rule: learn in 20% of the time the 80% of a topic. In particular, the goal is to get you up to speed quickly with SQL. This Enjoy! 3 The SQL Handbook 1. Information systems, data and information 2. What is a Database? And a DBMS? 3. Do you always need a database? 4. Relational Databases 5. Introduction to SQL 6. Creating data 20. Limit and offset 21. Comments The goal of this handbook is to get you up and running with SQL, starting from zero knowledge. You will learn the terms and the main ideas, what is a DBMS, how to0 码力 | 26 页 | 440.71 KB | 1 年前3- Calling Functions A TutorialCalling Functions A Tutorial Klaus Iglberger, CppCon 2020 klaus.iglberger@gmx.de2 Klaus Iglberger C++ Trainer since 2016 Author of the C++ math library (Co-)Organizer of the Munich Two-Phase Lookup Template Argument Deduction SFINAE Overload Resolution (Viable) Candidate Functions Ranking Ambiguous Function Calls Access Labels Function Template Specializations Virtual Two-Phase Lookup Template Argument Deduction SFINAE Overload Resolution (Viable) Candidate Functions Ranking Ambiguous Function Calls Access Labels Function Template Specializations Virtual0 码力 | 111 页 | 5.11 MB | 6 月前3
- Back To Basics Functionsfor many years -- please provide suggestions, analogies, and other useful ways to think about functions now or in the future!Please do not redistribute slides without prior permission. 4Your Tour Guide for the talk ● Located here: https://github.com/MikeShah/Talks/tree/main/2023/cppcon/functions 6Abstract Functions are one of the first things programmers learn, granting you the ultimate power to 'reuse' overview of functions from the start to the end, on the various powers that are given to us from the ground up. Consider this talk your one stop for learning all of the great things about functions! We'll0 码力 | 123 页 | 7.26 MB | 6 月前3
- From Functions to CoroutinesFrom Functions to Coroutines 40 Years Evolution Rainer Grimm Training, Coaching, and Technology Consulting www.ModernesCpp.netEvolution of Callable template
T invoke(Func sequence of functions can be changed ▪ Automatically parallelizable ▪ Results can be cachedPure Functions Working with a pure function is based on discipline Use common functions, meta-functions, constexpr constexpr, or consteval functions ▪ Function int powFunc(int m, int n){ if (n == 0) return 1; return m * powFunc(m, n - 1); } ▪ Meta-Function template struct PowMeta { static int const value 0 码力 | 29 页 | 510.47 KB | 6 月前3 - MYBATIS Dynamic SQLhttp://www.tutorialspoint.com/mybatis/mybatis_dynamic_sql.htm Copyright © tutorialspoint.com MYBATIS - DYNAMIC SQL MYBATIS - DYNAMIC SQL Dynamic SQL is a very powerful feature of MyBatis. It enables programmers write the query using the dynamic SQL. MyBatis uses a powerful Dynamic SQL language that can be used within any mapped SQL statement. Following are the OGNL based Dynamic SQL expressions provided by MyBatis when, otherwise trim where, set foreach The if Statement The most common thing to do in dynamic SQL is conditionally include a part of a where clause. For example −
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