SQL might very well be one of the most important tools an RPG programmer can pick up and learn. At the same time, SQL may represent some of the biggest benefits an IBM i-focused programmer can gain. SQL is the most widely used language for relational databases -- it's a data language that you can use to create, control, access, and manipulate databases.  Best yet, SQL is both simple and powerful.   From a career and business programming standpoint, SQL offers great ...

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