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pg_copy_from

(PHP 4 >= 4.2.0, PHP 5)

pg_copy_from — Inserisce le tuple in una tabella prendendole da un array

Descrizione

bool pg_copy_from ( resource $connessione , string $nometabella , array $tuple [, string $delimitatore [, string $null_as ]] )

pg_copy_from() inserisce le tuple in una tabella etraendole dall'array tuple. Utilizza internamente il comando OPY per inserire i record. Restituisce TRUE in caso di successo, FALSE in caso di fallimento.

Vedere anche pg_copy_to()

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User Contributed Notes 6 notes

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Dave ¶

1 year ago


As of postgresql 9.1 "standard_conforming_strings" is set to on



This will not work anymore

<?php

$copy_message = "1\t\\N\t300";

pg_copy_from($db, "message", $copy_message);

?>

result will be a "N" in that field. if the field allow text that is else it will fail to insert the post.



simple fix

<?php

$copy_message = "1\t\\NULL\t300";

pg_copy_from($db, "message", $copy_message, "\t","\\NULL");

?>

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Dave ¶

2 years ago


Fix for "Copy command failed: ERROR: literal carriage return


found in data" or 


"Copy command failed: ERROR: missing data for column


"message" CONTEXT: COPY message, line 1:"





<?php


$message = "HEJ\rHEJ\nHEJ\r\nHEJ\n\rHEJ\tHELLO\\";





$message = addslashes($message);





$message = str_replace(


  array("\n","\r","\t"),


  array("\\n","\\r","\\t"),


  $message);





$copy_message = "1\t". $message ."\t300";





pg_copy_from($db, "message", $copy_message);


?>

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Anonymous ¶

4 years ago


see also: pg_put_line for a solution that does not require buffering of all the data to be copied,

down

kapouer_php at melix dot org ¶

6 years ago


pg syntax is :

COPY test (cola, colb, colc) FROM stdin;

...



this function doesn't let you in which order the columns are !

down

vlad at php dot net ¶

10 years ago


By default NULL values are a backslash followed with capital N ("\\N"). 



Also, you can't insert entries with OIDs (I've added it to my TODO list though)

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carl at thep.lu.se ¶

11 years ago


Something needs to be said about the format of the array.

Judging by what I've seen, it's pretty much what you get

from loading a tab-separated file with file(). That is, the

lines are linefeed-terminated and there's no need to have

an extra line with "\.". On the other hand, when I try using this

command the connection to the server ends up in some odd

state and is then lost:

PHP Warning:  U�S�o() query failed: server closed the connection unexpectedly



I think it might be safer to use the lower-level function

pg_put_line() for now.

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