Поиск всех заказчиков, в адресе которых содержится строка «Ростов». SELECT * FROM CUSTOMER WHERE ADDRESS LIKE '%Ростов%' Подсказка Если вам необходимо выполнить поиск внутри строки, то вместо предиката простейшей форме SELECT извлекает ряд полей из единственной таблицы, например: SELECT id, name, address FROM contacts Или, для того чтобы извлечь все поля таблицы: SELECT * FROM THEN 'Mrs.' WHEN 'M' THEN 'Mr.' Операторы DML 247 ELSE '' END AS title, lastname, address FROM employees Запрос с использованием оконной функции

class User { id : INTEGER .. other_id : INTEGER } class Email { id : INTEGER .. user_id : INTEGER address : INTEGER } User::id *-- Email::user_id @enduml [Ref. QA-5261] Справочное руководство по языку binary "enable" as en binary "R/W" as rw binary "data Valid" as dv concise "dataBus" as db concise "address bus" as addr Справочное руководство по языку PlantUML (1.2021.2) 185 / 387 10.17 Digital Example structure. @startjson { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 27, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "10021-3100"

class User { id : INTEGER .. other_id : INTEGER } class Email { id : INTEGER .. user_id : INTEGER address : INTEGER } User::id *-- Email::user_id @enduml [Ref. QA-5261] Справочное руководство по языку binary "enable" as en binary "R/W" as rw binary "data Valid" as dv concise "dataBus" as db concise "address bus" as addr Справочное руководство по языку PlantUML (1.2021.1) 183 / 382 10.17 Digital Example structure. @startjson { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 27, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "10021-3100"

ДИАГРАММЫ КЛАССОВ id : INTEGER .. other_id : INTEGER } class Email { id : INTEGER .. user_id : INTEGER address : INTEGER } User::id *-- Email::user_id @enduml [Ref. QA-5261] 3.39 Группировка стрелок, ведущих binary "enable" as en binary "R/W" as rw binary "data Valid" as dv concise "dataBus" as db concise "address bus" as addr @6 as :write_beg @10 as :write_end @15 as :read_beg @19 as :read_end @0 en is low structure. @startjson { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 27, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "10021-3100"

class User { id : INTEGER .. other_id : INTEGER } class Email { id : INTEGER .. user_id : INTEGER address : INTEGER } User::id *-- Email::user_id @enduml [Ref. QA-5261] Справочное руководство по языку binary "enable" as en binary "R/W" as rw binary "data Valid" as dv concise "dataBus" as db concise "address bus" as addr Справочное руководство по языку PlantUML (1.2021.2) 196 / 405 10.17 Digital Example structure. @startjson { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 27, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "10021-3100"

Sanitizers – библиотеки из поставки компиляторов, помогают найти проблемы в коде на С++ или Go. Виды: › Address – неправильная работа с адресацией и утечки › Thread – гонки и взаимные блокировки › Undefined – Компилятор Тип сборки Санитайзер Библиотеки Бинарник clang-7 debug — contrib static clang-7 release address contrib static clang-7 release undefined contrib static clang-7 release — contrib shared clang-8 мы заслуживаем Стресс-тест › n копий функциональных тестов › Нагрузка из мусорных запросов › С address и thread санитайзерами › Проверяется живость сервера 19 / 77 Тестирование ClickHouse, которого мы

class User { id : INTEGER .. other_id : INTEGER } class Email { id : INTEGER .. user_id : INTEGER address : INTEGER } User::id *-- Email::user_id @enduml [Ref. QA-5261] Справочное руководство по языку binary "enable" as en binary "R/W" as rw binary "data Valid" as dv concise "dataBus" as db concise "address bus" as addr @6 as :write_beg @10 as :write_end @15 as :read_beg @19 as :read_end @0 en is low structure. @startjson { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 27, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "10021-3100"

DATE_START_CONNECT) VALUES ( CURRENT_USER, CURRENT_CONNECTION, RDB$GET_CONTEXT('SYSTEM', 'CLIENT_ADDRESS'), :REMOTE_PROTOCOL, :APP_NAME, :SERVER_PID, :PC_USER_PID, CURRENT_TIMESTAMP); END Следующий пример в триггере после вставки (AFTER INSERT). Пример: INSERT INTO SCHOLARS ( FIRSTNAME, LASTNAME, ADDRESS, PHONE, EMAIL) VALUES ( 'Henry', 'Higgins', '27A Wimpole Street', '+7 (100) 323-1212', NULL) RETURNING NETWORK_PROTOCOL Протокол, используемый в соединении: 'TCPv4', 'WNET', 'XNET' или NULL CLIENT_ADDRESS Для TCPv4 — IP адрес, для XNET — локальный ID процесса. Для всех остальных протоколов переменная

binary "enable" as en binary "R/W" as rw binary "data Valid" as dv concise "dataBus" as db concise "address bus" as addr @6 as :write_beg @10 as :write_end @15 as :read_beg @19 as :read_end @0 en is low structure. @startjson { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 27, "address": { "streetAddress": "21 2nd Street", "city": "New York", "state": "NY", "postalCode": "10021-3100" #highlight "lastName" #highlight "address" / "city" #highlight "phoneNumbers" / "0" / "number" { "firstName": "John", "lastName": "Smith", "isAlive": true, "age": 28, "address": { "streetAddress": "21 2nd Street"