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ORDER BY название_стобца1 (либо номер, либо имя (после AS)), название_столбца2после имени столбца указывается ключевое слово ASC (по возрастанию) или DESC (по убыванию)
IF(логическое_выражение, выражение_при_true, выражение_при_false)Разрешается вложенность
SELECT author, MIN(price) AS Минимальная_цена, MAX(price) AS Максимальная_цена FROM book WHERE author <> 'Есенин С.А.' GROUP BY author HAVING SUM(amount) > 10;Лучше как можно больше использовать WHERE тк таким образом будут дальнейшие операции выполняться с меньшим объемом данных
NOTANDORскобки важны тк приоритеты очень сильные BETWEEN (WHERE amount BETWEEN 5 AND 14;)IN (WHERE author IN ('Булгаков М.А.', 'Достоевский Ф.М.');)у этих выше приоритет
- supplier providers multiple parts A part can only be provided by one supplier- a supplier provides multiple parts and a part can only be provided by one supplier
Process of creating small, stable, yet flexible and adaptive data structures from complex groups of data and minimizes repeated data groups which makes it possible to use use a relational database model (RDBM) effectively.
A collection of data organized to serve many applications at the same time by storing and managing data so that they appear to be in one location.
Software as a service (SaaS), infrastructure as a service (IaaS) and platform as a service (PaaS)
Comprises additional programs to handle, administrate and analyze the stored data.
A one-to-one linkage (mapping) between General Ledger revenue accounts and CO revenue elements is established to permit the transfer of FI revenue information to CO.
Rectangle : Entity (bike, plant)Cercle : Attribute (id, Color, capacity)Losange : Relation (is stored)- one and only one : 1- One or more, any number, optional : M or N
Classify the valuated consumption of production factors of an enterprise within a controlling area. They provide information concerning the value flow and value consumption within the enterprise.
Wave 1: Creating manageable data structuresWave 2: Web and content managementWave 3: Managing big data
- More flexible data model- Easier to scale- Handle large volumes of unstructured and structured data
- used to access and manipulate databases- Supports at least major commands (SELECT, UPDATE, DELETE, INSERT, WHERE)
unique identifier for all the information in any row of a database table
· Executives· Senior Management· Department Managers· Controllers· Cost Accountants
Responsible for cost containment, not responsible for revenue generation
1. User interface we use different access opportunities2. Application logic components regarding our ERP system3. Large database where data is stored
- Desire to grow- Changing business model- Need for advanced functionality- Too many business systems supporting processes - Problems such as exact financial performance, customers satisfaction, levels of inventory

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