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14 wrz 2015 · Make a PDF with the data from the SQL server. Here is some sample code: FileStream fs = new FileStream(filename, FileMode.CreateNew); Document doc = new Document(PageSize.A4); PdfWriter pdfWriter = PdfWriter.GetInstance(doc, fs);
Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. Start learning SQL now » Examples in Each Chapter
The SQL cheat sheet provides you with the most commonly used SQL statements for your reference. 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)
1 cze 2021 · Some databases implement non-standard solutions for concatenating strings like CONCAT() or CONCAT_WS(). Check the documentation for your specific database. Use the _ character to replace any single character. Use the % character to replace any number of characters (including 0 characters).
Whether you need a quick reference for major SQL concepts before an interview, or you want to level-up your existing SQL skills, our SQL cheat sheet is the ideal starting point. Plus, we’ve broken it down into 11 essential SQL topics to help you get the most from this SQL query cheat sheet.
1 cze 2021 · Check the documentation for your specific database. LIKE OPERATOR – PATTERN MATCHING. Use the _ character to replace any single character. Use the % character to replace any number of characters (including 0 characters). Fetch all names that start with any letter followed by. 'atherine': SELECT name. FROM names. WHERE name LIKE '_atherine';
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.
