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185    padding: 0 !important;
186    background: transparent !important;
187}
188
189/* Само поле ввода */
190.widget input.gsc-input,
191input.gsc-input,
192.gsc-input-box input[type="text"] {
193    background: #fff !important;
194   /* border: 1.5px solid #dde3ec !important;*/
195    border-radius: 8px !important;
196/*    box-shadow: 0 1px 4px rgba(0,0,0,.06) !important;*/
197    padding: 8px 12px 8px 38px !important;
198    font-family: 'Inter', sans-serif !important;
199    font-size: 1.35rem !important;
200    color: #1a2535 !important;
201    width: 97% !important;
202    height: auto !important;
203    transition: border-color .15s, box-shadow .15s !important;
204    outline: none !important;
205}
206
207.widget input.gsc-input:focus,
208input.gsc-input:focus {
209    border-color: #1a5296 !important;
210    box-shadow: 0 0 0 3px rgba(26,82,150,.12) !important;
211}
212
213/* Убираем фон-таблицу которую рисует Google */
214.gsc-input-box {
215    background: transparent !important;
216    border: none !important;
217    padding: 0 !important;
218}
219
220table.gsc-search-box,
221table.gsc-search-box td {
222    border: none !important;
223    padding: 0 !important;
224    margin: 0 !important;
225    background: transparent !important;
226}
227
228/* Кнопка поиска — скрываем стандартную Google */
229.widget .gsc-search-button,
230.gsc-search-button {
231    display: none !important;
232}
233
234/* Иконка лупы через CSS (псевдоэлемент на обёртке) */
235.widget .gsc-input-box-hover,
236.widget .gsc-input-box {
237    position: relative !important;
238}
239
240.widget .gsc-input-box::before {
241    content: '';
242    display: block;
243    position: absolute;
244    left: 12px;
245    top: 50%;
246    transform: translateY(-50%);
247    width: 16px;
248    height: 16px;
249    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewB
249ox='0 0 24 24' fill='none' stroke='%236b7a90' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
250    background-repeat: no-repeat;
251    background-size: contain;
252    pointer-events: none;
253    z-index: 1;
254}
255
256/* Результаты поиска */
257.gsc-results-wrapper-overlay {
258    border-radius: 8px !important;
259    box-shadow: 0 8px 24px rgba(0,0,0,.15) !important;
260}
261
262.gsc-result {
263    border-bottom: 1px solid #dde3ec !important;
264    padding: 12px 0 !important;
265}
266
267.gs-title, .gs-title * {
268    color: #1a5296 !important;
269    font-family: 'Inter', sans-serif !important;
270    font-size: 1.4rem !important;
271}
272
273.gs-snippet {
274    color: #445566 !important;
275    font-family: 'Inter', sans-serif !important;
276    font-size: 1.3rem !important;
277}</style>
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336	<header class="entry-header">
337		<h1 class="entry-title">SQL - описание</h1>
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339		<!--	-->
340		</div><!-- .entry-meta -->		
341	</header><!-- .entry-header -->
342
343	<div class="entry-content">
344				<br />
345<h2>Типы SQL-запросов</h2>
346<table>
347<tbody>
348<tr>
349<td><a href="https://oracleplsql.ru/select-sql.html">SELECT</a></td>
350<td>Извлечение записей из таблицы</td>
351</tr>
352<tr>
353<td><a href="https://oracleplsql.ru/select-limit-sql.html">SELECT LIMIT</a></td>
354<td>Извлечение записей из таблицы и ограничение результатов</td>
355</tr>
356<tr>
357<td><a href="https://oracleplsql.ru/select-top-sql.html">SELECT TOP</a></td>
358<td>Извлечение записей из таблицы и ограничение результатов</td>
359</tr>
360<tr>
361<td><a href="https://oracleplsql.ru/insert-sql.html">INSERT</a></td>
362<td>Вставка записей в таблицу</td>
363</tr>
364<tr>
365<td><a href="https://oracleplsql.ru/update-sql.html">UPDATE</a></td>
366<td>Обновление записей в таблице</td>
367</tr>
368<tr>
369<td><a href="https://oracleplsql.ru/delete-sql.html">DELETE</a></td>
370<td>Удалить записи из таблицы.</td>
371</tr>
372<tr>
373<td><a href="https://oracleplsql.ru/truncate-table-sql.html">TRUNCATE TABLE</a></td>
374<td>Удалить все записи из таблицы (без отката)</td>
375</tr>
376<tr>
377<td><a href="https://oracleplsql.ru/union-sql.html">UNION</a></td>
378<td>Объединяет 2 набора результатов (удаляет дубликаты)</td>
379</tr>
380<tr>
381<td><a href="https://oracleplsql.ru/union-all-sql.html">UNION ALL</a></td>
382<td>Объединяет 2 набора результатов (включает дубликаты)</td>
383</tr>
384<tr>
385<td><a href="https://oracleplsql.ru/intersect-sql.html">INTERSECT</a></td>
386<td>Пересечение 2 наборов результатов</td>
387</tr>
388<tr>
389<td><a href="https://oracleplsql.ru/minus-sql.html">MINUS</a></td>
390<td>Результирующий набор одного минус результирующий набор другого</td>
391</tr>
392<tr>
393<td><a href="https://oracleplsql.ru/except-sql.html">EXCEPT</a></td>
394<td>Набор результатов одного минус набор результатов другого</td>
395</tr>
396<tr>
397<td><a href="https://oracleplsql.ru/joins-sql.html">JOIN</a></td>
398<td>Соединение таблиц</td>
399</tr>
400<tr>
401<td><a href="https://oracleplsql.ru/distinct-sql.html">DISTINCT</a></td>
402<td>Получить уникальные записи</td>
403</tr>
404<tr>
405<td><a href="https://oracleplsql.ru/from-sql.html">FROM</a></td>
406<td>Список таблицы и JOIN информация</td>
407</tr>
408<tr>
409<td><a href="https://oracleplsql.ru/where-sql.html">WHERE</a></td>
410<td>Фильтр результатов</td>
411</tr>
412<tr>
413<td><a href="https://oracleplsql.ru/order-by-sql.html">ORDER BY</a></td>
414<td>Сортировать результаты запроса</td>
415</tr>
416<tr>
417<td><a href="https://oracleplsql.ru/group-by-sql.html">GROUP BY</a></td>
418<td>Группировать по одному или нескольким столбцам</td>
419</tr>
420<tr>
421<td><a href="https://oracleplsql.ru/having-sql.html">HAVING</a></td>
422<td>Ограничить группы возвращаемых строк</td>
423</tr>
424</tbody>
425</table>
426<h2>Таблицы и представления SQL</h2>
427<table>
428<tbody>
429<tr>
430<td><a href="https://oracleplsql.ru/create-table-sql.html">CREATE TABLE</a></td>
431<td>Создать таблицу</td>
432</tr>
433<tr>
434<td><a href="https://oracleplsql.ru/create-table-as-sql.html">CREATE TABLE AS</a></td>
435<td>Создать таблицу из определения и данных другой таблицы</td>
436</tr>
437<tr>
438<td><a href="https://oracleplsql.ru/alter-table-sql.html">ALTER TABLE</a></td>
439<td>Добавить, изменить или удалить столбцы в таблице; переименовать таблицу</td>
440</tr>
441<tr>
442<td><a href="https://oracleplsql.ru/drop-table-sql.html">DROP TABLE</a></td>
443<td>Удалить таблицу</td>
444</tr>
445<tr>
446<td><a href="https://oracleplsql.ru/sql-global-temp-tables.html">GLOBAL TEMP Tables</a></td>
447<td>Таблицы, которые различны в рамках сеанса SQL</td>
448</tr>
449<tr>
450<td><a href="https://oracleplsql.ru/sql-local-temp-tables.html">LOCAL TEMP Tables</a></td>
451<td>Таблицы, которые различаются в модулях и встроенной программе SQL</td>
452</tr>
453<tr>
454<td><a href="https://oracleplsql.ru/view-sql.html">SQL VIEW</a></td>
455<td>Виртуальные таблицы (представления других таблиц)</td>
456</tr>
457</tbody>
458</table>
459<h2>SQL ключи, индексы</h2>
460<table>
461<tbody>
462<tr>
463<td><a href="https://oracleplsql.ru/primary-keys-sql.html">Primary Keys</a></td>
464<td>Создание или удаление первичных ключей.</td>
465</tr>
466<tr>
467<td>
467<a href="https://oracleplsql.ru/indexes-sql.html">Indexes</a></td>
468<td>Создание и удаление индексов (настройка производительности)</td>
469</tr>
470</tbody>
471</table>
472<h2>Операторы сравнения SQL</h2>
473<table>
474<tbody>
475<tr>
476<td><a href="https://oracleplsql.ru/comparison-operators-sql.html">Comparison operators</a></td>
477<td>Операторы сравнения такие как =, !=, <>, >, >=, <, <= и т.д.</td>
478</tr>
479</tbody>
480</table>
481<h2>SQL условия</h2>
482<table>
483<tbody>
484<tr>
485<td><a href="https://oracleplsql.ru/and-sql.html">AND</a></td>
486<td>2 или более условия, которые должны быть выполнены</td>
487</tr>
488<tr>
489<td><a href="https://oracleplsql.ru/or-sql.html">OR</a></td>
490<td>Любое из условий выполнено</td>
491</tr>
492<tr>
493<td><a href="https://oracleplsql.ru/and-or-sql.html">AND И OR</a></td>
494<td>Сочетание условий AND И OR</td>
495</tr>
496<tr>
497<td><a href="https://oracleplsql.ru/like-sql.html">LIKE</a></td>
498<td>Используйте подстановочные знаки в предложении WHERE</td>
499</tr>
500<tr>
501<td><a href="https://oracleplsql.ru/in-sql.html">IN</a></td>
502<td>Соответствие выражения списку значений</td>
503</tr>
504<tr>
505<td><a href="https://oracleplsql.ru/not-sql.html">NOT</a></td>
506<td>Отрицание </td>
507</tr>
508<tr>
509<td><a href="https://oracleplsql.ru/is-null-sql.html">IS NULL</a></td>
510<td>Проверка значения на NULL</td>
511</tr>
512<tr>
513<td><a href="https://oracleplsql.ru/is-not-null-sql.html">IS NOT NULL</a></td>
514<td>Проверка значения на NOT NULL</td>
515</tr>
516<tr>
517<td><a href="https://oracleplsql.ru/between-sql.html">BETWEEN</a></td>
518<td>Выборка в пределах диапазона (включительно)</td>
519</tr>
520<tr>
521<td><a href="https://oracleplsql.ru/exists-sql.html">EXISTS</a></td>
522<td>Условие выполняется, если подзапрос возвращает хотя бы одну строку</td>
523</tr>
524</tbody>
525</table>
526<h2>Программирование SQL</h2>
527<table>
528<tbody>
529<tr>
530<td><a href="https://oracleplsql.ru/comments-sql.html">Comments</a></td>
531<td>Как создавать комментарии в вашем коде SQL</td>
532</tr>
533</tbody>
534</table>
535<h2>Типы данных SQL</h2>
536<table>
537<tbody>
538<tr>
539<td><a href="https://oracleplsql.ru/data-types-sql.html">Data Types</a></td>
540<td>Типы данных в SQL</td>
541</tr>
542</tbody>
543</table>
544<h2>Псевдонимы SQL</h2>
545<table>
546<tbody>
547<tr>
548<td><a href="https://oracleplsql.ru/aliases-sql.html">ALIASES</a></td>
549<td>Создание временного имени для столбца или таблицы</td>
550</tr>
551</tbody>
552</table>
553<h2>Литералы SQL</h2>
554<table>
555<tbody>
556<tr>
557<td><a href="https://oracleplsql.ru/literals-sql.html">LITERALS</a></td>
558<td>Литералы такие как string, integer, decimal и datetime.</td>
559</tr>
560</tbody>
561</table>
562<h2>Функции SQL </h2>
563<table>
564<tbody>
565<tr>
566<td><a href="https://oracleplsql.ru/count-sql.html">COUNT</a></td>
567<td>Возвращает количество выражений</td>
568</tr>
569<tr>
570<td><a href="https://oracleplsql.ru/sum-sql.html">SUM</a></td>
571<td>Возвращает сумму выражения</td>
572</tr>
573<tr>
574<td><a href="https://oracleplsql.ru/min-sql.html">MIN</a></td>
575<td>Возвращает минимум выражения</td>
576</tr>
577<tr>
578<td><a href="https://oracleplsql.ru/max-sql.html">MAX</a></td>
579<td>Возвращает максимум выражения</td>
580</tr>
581<tr>
582<td><a href="https://oracleplsql.ru/avg-sql.html">AVG</a></td>
583<td>Возвращает среднее значение выражения</td>
584</tr>
585</tbody>
586</table>
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