полностью прекратиться. Таблица B.2. Коды ошибок GDSCODE, SQLCODE и их описание SQLCODE GDSCODE SYMBOL TEXT Описание и перевод сообщения. 101 335544366 Segment Segment buffer length shorter than expected retrieval of more segments than exist. Обработка ошибок, коды и сообщения 560 SQLCODE GDSCODE SYMBOL TEXT Описание и перевод сообщения. Попытка обращения к сегменту большему чем их существует. очень длинный. Максимальная длина 8 байт. Обработка ошибок, коды и сообщения 561 SQLCODE GDSCODE SYMBOL TEXT Описание и перевод сообщения. -85 335544749 usrname_required A username is required for

Firebird 2.0 Error Codes Firebird 2.0 Error Codes SQLCODE GDSCODE SYMBOL TEXT 101 335544366 segment Segment buffer length shorter than expected 100 335544338 from_no_match No match for first value able Datatypes %sare not comparable in expression %s Firebird 2.0 Error Codes SQLCODE GDSCODE SYMBOL TEXT -104 335544343 invalid_blr Invalid request BLR at offset %ld -104 335544390 syntaxerr BLR either an aggregate function or the GROUP BY clause) Firebird 2.0 Error Codes SQLCODE GDSCODE SYMBOL TEXT -104 335544825 dsql_agg_having_err Invalid expression in the %s (neither an aggregate function

Wildcards Two wildcard symbols are available for use in the search pattern: • the percentage symbol (%) will match any sequence of zero or more characters in the tested value • the underscore character an escape character. The escape character must precede the ‘%’ or ‘_’} symbol in the search string, to indicate that the symbol is to be interpreted as a literal character. Examples using LIKE 1. Find constant or variable whose value resolves to the same data type as varname PSQL uses the equivalence symbol (‘=’) as its assignment operator. The assignment statement assigns an SQL expression value on the

Wildcards Two wildcard symbols are available for use in the search pattern: • the percentage symbol (%) will match any sequence of zero or more characters in the tested value • the underscore character an escape character. The escape character must precede the ‘%’ or ‘_’ symbol in the search string, to indicate that the symbol is to be interpreted as a literal character. Examples using LIKE 1. Find constant or variable whose value resolves to the same data type as varname PSQL uses the equal symbol (‘=’) as its assignment operator. The assignment statement assigns an SQL expression value on the

计算当前行和它前后各一行数据的x平均值 >> create create table table stock_ticker stock_ticker ((stock_symbol string stock_symbol string,, closing_price closing_price decimal decimal((88,,22)),, closing_date closing_date from stock_ticker stock_ticker order order by by stock_symbol stock_symbol,, closing_date closing_date || stock_symbol stock_symbol || closing_price closing_price || closing_date stock_symbol stock_symbol,, closing_date closing_date,, closing_price closing_price,, avg avg((closing_price closing_price)) over over ((partition partition by by stock_symbol stock_symbol

Escape-Zeichen zu definieren. Das Escape-Zeichen muss dem ‘%’ oder ‘_’ Symbol im Suchstring vorangestellt werden, um anzuzeigen, dass das Symbol als wörtliches Zeichen interpretiert werden soll. Beispiele für eingestellt. Tabelle 233. SQLCODE- und GDSCODE-Fehlercodes sowie Meldungen SQL­ CODE GDSCODE Symbol Message Text 501 335544802 dialect_reset_warning Database dialect being changed from 3 to 1 301 guous2 integers in SQL dialect 3. Anhang B: Fehlercodes und Meldungen 582 SQL­ CODE GDSCODE Symbol Message Text 300 335544807 sqlwarn SQL warning code = @1 106 336068855 dyn_miss_priv_warning Warning:

Icon: • Ein grün/graues Symbol, sofern der Server vom Guardian kontrolliert wird; • Ein gelb/schwarzes Symbol, sofern der Firebird Server ohne Guardian läuft. Ein blinkendes Symbol zeigt an, dass der Server Server gestartet wird (oder versucht wird dies zu tun). Ein rotes Symbol, oder ein Symbol mit einem darüberliegenden roten Stoppzeichen, zeigt an, dass der Serverstart fehlgeschlagen ist. Ein Weg um 100% sind doppelte „Pipe“ Symbole (ASCII 124, in einem Paar mit keinem Leerzei- chen dazwischen). Das „+“ Symbol in SQL ist ein arithmetischer Operator und wird einen Fehler nach sich ziehen, wenn Sie versuchen

............................................................................ 17 String delimiter symbol ............................................................................................ 17 Double-quoted Firebird is quirky, whereas many of its apparent quirks are not quirky at all. String delimiter symbol Strings in Firebird are delimited by a pair of single quote symbols – 'I am a string' – (ASCII code double-quote. Concatenation of strings The concatenation symbol in SQL is two “pipe” symbols (ASCII 124, in a pair with no space between). In SQL, the “+” symbol is an arithmetic operator and it will cause an error

running as an application, it is represented by an icon in the system tray: • A green and grey server symbol if controlled by the Guardian; • A round yellow and black graphic if running standalone. A flashing 333 Chapter 6. Working with databases 35 6.4.2. Things to know about strings String delimiter symbol Strings in Firebird are delimited by a pair of single quote (apostrophe) symbols: 'I am a string' Concatenation of strings The concatenation symbol in SQL is two “pipe” symbols (“||”, or a pair of ASCII 124 without space between). In SQL, the “+” symbol is an arithmetic operator, and it will cause

running as an application, it is represented by an icon in the system tray: • A green and grey server symbol if controlled by the Guardian; • A round yellow and black graphic if running standalone. A flashing to produce a non-zero result: 1.000 / 3 = 0.333 Things to know about strings String delimiter symbol Strings in Firebird are delimited by a pair of single quote (apostrophe) symbols: 'I am a string' double-quote. Concatenation of strings The concatenation symbol in SQL is two “pipe” symbols (ASCII 124, in a pair with no space between). In SQL, the “+” symbol is an arithmetic operator and it will cause an error