01-31-2014
How to store count of multiple queries in variables in a shell script?
how to store the count of queries in variables inside a filein shell script
my output :
filename
-------
variable1=result from 1st query
variable2=result from 2nd query
.
.
.
.
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:)
Suppose,I have one table A. Table A have one column. Table A have 10 rows. I want this 10 rows store into shell script variable.
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LEARN ABOUT PHP
mysqli_multi_query
MYSQLI_MULTI_QUERY(3) 1 MYSQLI_MULTI_QUERY(3)
mysqli::multi_query - Performs a query on the database
Object oriented style
SYNOPSIS
bool mysqli::multi_query (string $query)
DESCRIPTION
Procedural style
bool mysqli_multi_query (mysqli $link, string $query)
Executes one or multiple queries which are concatenated by a semicolon.
To retrieve the resultset from the first query you can use mysqli_use_result(3) or mysqli_store_result(3). All subsequent query results
can be processed using mysqli_more_results(3) and mysqli_next_result(3).
PARAMETERS
o $
link -Procedural style only: A link identifier returned by mysqli_connect(3) or mysqli_init(3)
o $query
- The query, as a string. Data inside the query should be properly escaped.
RETURN VALUES
Returns FALSE if the first statement failed. To retrieve subsequent errors from other statements you have to call mysqli_next_result(3)
first.
EXAMPLES
Example #1
mysqli::multi_query example
Object oriented style
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s
", mysqli_connect_error());
exit();
}
$query = "SELECT CURRENT_USER();";
$query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";
/* execute multi query */
if ($mysqli->multi_query($query)) {
do {
/* store first result set */
if ($result = $mysqli->store_result()) {
while ($row = $result->fetch_row()) {
printf("%s
", $row[0]);
}
$result->free();
}
/* print divider */
if ($mysqli->more_results()) {
printf("-----------------
");
}
} while ($mysqli->next_result());
}
/* close connection */
$mysqli->close();
?>
Procedural style
<?php
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s
", mysqli_connect_error());
exit();
}
$query = "SELECT CURRENT_USER();";
$query .= "SELECT Name FROM City ORDER BY ID LIMIT 20, 5";
/* execute multi query */
if (mysqli_multi_query($link, $query)) {
do {
/* store first result set */
if ($result = mysqli_store_result($link)) {
while ($row = mysqli_fetch_row($result)) {
printf("%s
", $row[0]);
}
mysqli_free_result($result);
}
/* print divider */
if (mysqli_more_results($link)) {
printf("-----------------
");
}
} while (mysqli_next_result($link));
}
/* close connection */
mysqli_close($link);
?>
The above examples will output something similar to:
my_user@localhost
-----------------
Amersfoort
Maastricht
Dordrecht
Leiden
Haarlemmermeer
SEE ALSO
mysqli_query(3), mysqli_use_result(3), mysqli_store_result(3), mysqli_next_result(3), mysqli_more_results(3).
PHP Documentation Group MYSQLI_MULTI_QUERY(3)