. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 7. Pointer Page — Type 0x04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . consist of Index Root Pages (page type 0x06), Transaction Inventory Pages or TIP (page type 0x03), Pointer Pages (page type 0x04), Index BTree Pages (page type 0x07), Data Pages (page type 0x05) and so on this transaction has committed. 0x04 Pointer Page. Each table has one or more of these and this page type keeps track of all the pages that make up the table. Pointer pages are owned by one and only one

test): set sqldata to null (null pointer, not SQL NULL) and *sqlind to 0 (for NOT NULL) User has left the field blank Both parameters: set sqldata to null (null pointer, not SQL NULL) and *sqlind to -1 WHERE first_name LIKE 'Sm_th' 3. Search for all clients whose address contains the string “Rostov”: SELECT * FROM CUSTOMER WHERE ADDRESS LIKE '%Rostov%'  If you need to do a case-insensitive search used. db_alias Database alias previously created in the databases.conf file host Host name or IP address of the server where the database is to be created port The port number where the remote server is

The FIREBIRD Variable FIREBIRD is an optional environment variable that provides a system-level pointer to the root directory of the Firebird installation. If it exists, it is available everywhere in the to avoid possible conflicts with "System Restore" feature of these Windows versions. Failure to address this issue on these plat- forms will give rise to the known problem of delay on first connection NOT a TCP/IP local loopback connection string that includes the server name “localhost” or the IP address 127.0.0.1. The embedded server supports only the local connect to an absolute database file path

test): set sqldata to null (null pointer, not SQL NULL) and *sqlind to 0 (for NOT NULL) User has left the field blank Both parameters: set sqldata to null (null pointer, not SQL NULL) and *sqlind to -1 WHERE first_name LIKE 'Sm_th' 3. Search for all clients whose address contains the string “Rostov”: SELECT * FROM CUSTOMER WHERE ADDRESS LIKE '%Rostov%'  If you need to do a case-insensitive search db_alias Database alias previously created in the aliases.conf file servername Host name or IP address of the server where the database is to be created username User name of the owner of the new database

Suche nach allen Mandanten, deren Adresse den String “Rostov” enthält: SELECT * FROM CUSTOMER WHERE ADDRESS LIKE '%Rostov%'  Benötigen Sie eine Suche, die Groß- und Kleinschreibung innerhalb einer Zeichenkette line4 = ''; line5 = ''; line6 = ''; SELECT customer, contact_first, contact_last, address_line1, address_line2, city, state_province, country, postal_code FROM CUSTOMER WHERE cust_no = :cust_no eine Reihe von Spalten aus einer einzelnen Tabelle oder Ansicht ab, wie folgt: select id, name, address from contacts Oder, um alle Spalten abzurufen: select * from sales In der Praxis wird eine SELECT-Anweisung

Firebird reads the database header page, then the first pointer page of a system table called RDB$PAGES from which it then knows where to find the pointer pages, amongst other things, for the system and user As soon as the application accesses the database and begins a transaction, Firebird reads the pointer pages telling it where to find the data pages for the tables involved in the application’s transactions changed and referenced pages resident in the cache - those would be transaction inventory pages, pointer pages for active tables, the header page, the top levels of indexes, etc. Data and lower level index

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

to the function as an empty string. (Note: in Firebird 2 and up, it can also be passed as a null pointer. We’ll get to that later.) From inside the function there is no way of telling if this argument or assume it was originally a NULL and treat it accordingly. If the function result type is a pointer, returning NULL is possible even if receiving NULL isn’t. Thus, the following unexpected things somewhat improved calling mechanism for old-style UDFs. The engine will now pass NULL input as a null pointer to the function, if the function has been declared to the database with a NULL keyword after the

Firebird die Datenbank-Header-Seite (engl. database header page), dann die erste Zeiger-Seite (engl. pointer page) der Systemtabelle RDB$PAGES. Hiermit erfährt Firebird, wo die Zeiger-Seiten, neben anderen

example: tux> gstat test.fdb -r -t NORMAN ... Analyzing database pages ... NORMAN (142) Primary pointer page: 268, Index root page: 269 Average record length: 0.00, total records: 15 Average version