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25 sie 2021 · This comprehensive cheat sheet is packed with syntax for different text and numeric functions, CASE WHEN statements, handling NULL, date and time types, INTERVALs, and aggregate functions. It also features a troubleshooting section to help you navigate through common issues seamlessly.
- SQL Basics Cheat Sheet
SQL. SQL, or Structured Query Language, is a language to...
- SQL Basics Cheat Sheet
10 sty 2012 · It has to do with the Normal Form for the SQL language. IF statements can, by definition, only take a single SQL statement. However, there is a special kind of SQL statement which can contain multiple SQL statements, the BEGIN-END block.
12 wrz 2022 · Learn how to build conditional logic when writing SQL code using IF, BEGIN, END, ELSE, and ELSEIF logic.
1 cze 2021 · Standard SQL Functions Cheat Sheet. TEXT FUNCTIONS. CONCATENATION. Use the || operator to concatenate two strings: SELECT 'Hi ' || 'there!'; -- result: Hi there! Remember that you can concatenate only character strings using ||. Use this trick for numbers: SELECT '' || 4 || 2; -- result: 42.
5 wrz 2023 · SQL Functions. At the end of the day, SQL is a programming language, and it's one that supports functions. We can use functions and aliases to calculate new columns in a query. This is similar to how you might use formulas in Excel. IIF function. In SQLite, the IIF function works like a ternary. For example:
17 sie 2023 · 20 Basic SQL Query Examples for Beginners. Tihomir Babic. sql basics. Table of Contents. What Is SQL? Dataset. 1. Selecting All Columns From One Table. 2. Selecting One Column From One Table. 3. Selecting Two Columns From One Table. 4. Selecting Two (or More) Columns From One Table and Filtering Using Numeric Comparison in WHERE. 5.
Download this eBook for free. Chapters. Chapter 1: Getting started with Microsoft SQL Server. Chapter 2: Advanced options. Chapter 3: Aggregate Functions. Chapter 4: Alias Names in Sql Server. Chapter 5: Analyzing a Query. Chapter 6: Backup and Restore Database. Chapter 7: Basic DDL Operations in MS SQL Server.
