PHP: fbsql_query - Manual

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Last updated: Sat, 27 Jan 2007

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# fbsql_query

(PHP 4 >= 4.0.6, PHP 5)

fbsql_query -- Send a FrontBase query

## Описание

resource fbsql_query ( string query [, resource link_identifier [, int batch_size]] )

Sends a `query` to the currently active database on the server.

If the query succeeds, you can call fbsql_num_rows() to find out how many rows were returned for a SELECT statement or fbsql_affected_rows() to find out how many rows were affected by a DELETE, INSERT, REPLACE, or UPDATE statement.

## Список параметров

`query`

  The SQL query to be executed.

  > Замечание: The query string shall always end with a semicolon.

`link_identifier`

  A FrontBase link identifier returned by fbsql_connect() or fbsql_pconnect().

  If optional and not specified, the function will try to find an open link to the FrontBase server and if no such link is found it will try to create one as if fbsql_connect() was called with no arguments

`batch_size`

## Возвращаемые значения

fbsql_query() returns `TRUE` (non-zero) or `FALSE` to indicate whether or not the query succeeded. A return value of `TRUE` means that the query was legal and could be executed by the server. It does not indicate anything about the number of rows affected or returned. It is perfectly possible for a query to succeed but affect no rows or return no rows.

For SELECT statements, fbsql_query() returns a new result identifier that you can pass to fbsql_result().

fbsql_query() will also fail and return `FALSE` if you don't have permission to access the table(s) referenced by the query.

## Примеры

The following query is syntactically invalid, so fbsql_query() fails and returns `FALSE`:

Пример 1. fbsql_query() example

`<?php $result = fbsql_query("SELECT * WHERE 1=1") or die ("Invalid query"); ?>`

The following query is semantically invalid if `my_col` is not a column in the table `my_tbl`, so fbsql_query() fails and returns `FALSE`:

Пример 2. fbsql_query() example

`<?php $result = fbsql_query ("SELECT my_col FROM my_tbl;") or die ("Invalid query"); ?>`

## Смотрите также

fbsql_affected_rows()
fbsql_db_query()
fbsql_free_result()
fbsql_result()
fbsql_select_db()
fbsql_connect()

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Last updated: Sat, 27 Jan 2007
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