Search results
1 cze 2021 · function is there to help you out. It lets you change the type of value to almost anything (i nteger, numeric, double precision, varchar, and many more). Get the number as an Einteger (wit hout rounding): SELECT FCAST(1234.567 AS Minteger);-- r esult: 1234 Change a column type to double precision. SELECT. CAST(column AS double precision ...
Download this eBook for free Chapters. Chapter 1: Getting started with SQL; Chapter 2: ALTER TABLE; Chapter 3: AND & OR Operators; Chapter 4: Cascading Delete; Chapter 5: CASE; Chapter 6: Clean Code in SQL; Chapter 7: Comments; Chapter 8: Common Table Expressions; Chapter 9: CREATE Database; Chapter 10: CREATE FUNCTION; Chapter 11: CREATE TABLE
3 cze 2016 · Installing SQLite on your Mac is pretty straightforward. Just follow these steps: Head over to SQlite.org and download the C source code file, named sqlite-autoconf-3130000.tar.gz or similar,...
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 ...
Download the precompiled binaries for your operating system. Extract the downloaded file to a directory of your choice. Add the directory containing the SQLite binary to your system's PATH environment variable. Verify the installation by opening a command prompt and running the following command:
2 wrz 2024 · In this guide, we will see a comprehensive cheat sheet for essential SQL operations, offering a practical reference for tasks ranging from database creation to advanced data handling techniques.
1 cze 2021 · To get the number of seconds in a week: SELECT 60 * 60 * 24 * 7; -- result: 604800. From time to time, you need to change the type of a number. The CAST() function is there to help you out. It lets you change the type of value to almost anything (integer, numeric, double precision, varchar, and many more).
