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SQL Handwritten Notes Repository: A collection of PDF notes covering SQL concepts with concise definitions and examples. Explore fundamental commands, date/time functions, joins, and more. Contributions welcome!
Poor SQL : Take pity on your SQL with instant, free and open-source, online or offline formatting using the Poor Man's T-SQL Formatter library. If you like it, download the SSMS / Visual Studio plugin , the command-line bulk formatter , and/or the WinMerge plugin to integrate it into your workflow - equally free.
You can download the SQL cheat sheet as follows: Download 3-page SQL cheat sheet in PDF format. Querying data from a table. Query data in columns c1, c2 from a table. SELECT c1, c2 FROM t; Code language: SQL (Structured Query Language) (sql) Query all rows and columns from a table. SELECT * FROM t;
25 cze 2024 · Download the PDF of the SQL Basics Cheat Sheet. Download the PDF for SQL Constraints, Joins, Set Operators Cheat Sheet. Download the PDF of SQL Grouping, inbuilt, subquery, views, and temp table Cheat Sheet. Download the PDF for SQL User Define Function Cheat Sheet. Download the PDF for SQL Exception Handling Index, Pivot, Transactions Cheat Sheet.
1 cze 2021 · Fetch all names that start with any letter followed by 'atherine': SELECT name FROM names WHERE name LIKE '_atherine'; Fetch all names that end with 'a': SELECT name FROM names WHERE name LIKE '%a'; USEFUL FUNCTIONS. Get the count of characters in a string: SELECT LENGTH('LearnSQL.com');-- result: 12 Convert all letters to lowercase: SELECT ...
SQL is very similar to standard SQL, but in addition it supports some extra functionality, built- in functions, etc. T-SQL expands on the SQL standard to include procedural programming, local variables, various support functions for string processing, date processing,
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.
