06-06-2008
How to deal with long records (> 8k)??
Still working on manipulating SQL statements. Some are very long (10-20k). I'm using a shell script to read the SQL statements that are stored in a DB2 table and writing the records out to a file on Unix. The records appear to be getting truncated at 8k.
Is there any way for me to avoid the truncation??
fwiw, here's the code:
while (( $fetchrc == 0 )); do
sqlrow=`db2 +cp -x fetch from c1 `
fetchrc=$?
echo "$sqlrow"|tr -s " "
done
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LEARN ABOUT PHP
mysql_unbuffered_query
MYSQL_UNBUFFERED_QUERY(3) 1 MYSQL_UNBUFFERED_QUERY(3)
mysql_unbuffered_query - Send an SQL query to MySQL without fetching and buffering the result rows.
SYNOPSIS
Warning
This extension is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the MySQLi or PDO_MySQL extension should
be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:
oSee: Buffered and Unbuffered queries
resource mysql_unbuffered_query (string $query, [resource $link_identifier = NULL])
DESCRIPTION
mysql_unbuffered_query(3) sends the SQL query $query to MySQL without automatically fetching and buffering the result rows as
mysql_query(3) does. This saves a considerable amount of memory with SQL queries that produce large result sets, and you can start working
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tifier to identify which connection you want to use.
o $query
- The SQL query to execute. Data inside the query should be properly escaped.
o $
link_identifier -The MySQL connection. If the link identifier is not specified, the last link opened by mysql_connect(3) is
assumed. If no such link is found, it will try to create one as if mysql_connect(3) was called with no arguments. If no connection
is found or established, an E_WARNING level error is generated.
For SELECT, SHOW, DESCRIBE or EXPLAIN statements, mysql_unbuffered_query(3) returns a resource on success, or FALSE on error.
For other type of SQL statements, UPDATE, DELETE, DROP, etc, mysql_unbuffered_query(3) returns TRUE on success or FALSE on error.
Note
The benefits of mysql_unbuffered_query(3) come at a cost: you cannot use mysql_num_rows(3) and mysql_data_seek(3) on a result set
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query before you can send a new SQL query to MySQL, using the same $link_identifier.
mysql_query(3).
PHP Documentation Group MYSQL_UNBUFFERED_QUERY(3)