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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
10 sty 2012 · END can be used directly after an IF and thus the whole block of code in the BEGIN .... END sequence will be either executed or skipped. In your case I suspect the "(more code)" following FROM XXXXX is where your problem is.
The SQL online test assesses SQL skills using live coding tasks that require writing CRUD operations in order to extract, combine, and manipulate data. SQL queries on this test can be executed in MySQL, MS SQL, or SQLite databases.
An online SQL database playground for testing, debugging and sharing SQL snippets.
12 wrz 2022 · Learn how to build conditional logic when writing SQL code using IF, BEGIN, END, ELSE, and ELSEIF logic.
27 25.06.2019 Testing with utPLSQL –Made Easy with SQL Developer CREATE OR REPLACE FUNCTION f(a IN INTEGER) RETURN INTEGER IS BEGIN IF a IS NULL THEN RETURN 0; ELSE RETURN a*a; END IF; END f; / CREATE OR REPLACE FUNCTION f(a IN INTEGER) RETURN INTEGER IS BEGIN RETURN coalesce(a*a, 0); END f; / Two test cases for 100% coverage One test case ...
Practice SQL querys with an online terminal. Solve SQL query questions using a practice database. Learn and improve your SQL skills.
