mysql

 

I had a pretty complicated query that produced a resultset similar to the following:

tid name
20259 8"x10"
20294 10"x20"
20574 5.5"x14"
20581 20"x20"
20350 16"x20"

I wanted to return the results in order of the name so basically the smallest sizes would be shown first.

Here is a simplified query of what I did to achieve what I wanted:

SELECT tid, name
FROM table
ORDER BY name * 1, name

Now I get this resultset:

tid name
20574 5.5"x14"
20259 8"x10"
20294 10"x20"
20350 16"x20"
20581 20"x20"
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UPDATE tablename SET column=column-INTERVAL YEAR(column) YEAR+INTERVAL new year YEAR WHERE ID="ID";

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mysqldump --opt -u username -p database name > backup.sql

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The cause of this error is most likely due to the statement object returning false when attempting to be created. The cause of the statement object returning false is that the SQL statement is incorrect. Try running the same SQL command line and see if you get errors there.


$updateStatement = "UPDATE $db_table SET refID = ? WHERE trans_num = ?";

$stmt = $mysqli->prepare($updateStatement);

if(!$stmt) echo "error"; //Will print "error"

$stmt->bind_param("ss", $newTransNum, $originalTransNo); //This fails

//The SQL statement is wrong (there is no field trans_num in the table)

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randomness