Python mySQL Update, Working but not updating table
use dbb.commit() after curb.execute (“UPDATE RadioGroups SET CurrentState=1 WHERE RadioID=11”) to commit all the changes that you ‘loaded’ into the mysql server
sql-update
Updating integer column with null values in postgres
This should be, UPDATE table1 SET column_a = NULL WHERE column_b = ‘XXX’;
Update a table with data from another table
This is called a correlated update UPDATE table1 t1 SET (name, desc) = (SELECT t2.name, t2.desc FROM table2 t2 WHERE t1.id = t2.id) WHERE EXISTS ( SELECT 1 FROM table2 t2 WHERE t1.id = t2.id ) Assuming the join results in a key-preserved view, you could also UPDATE (SELECT t1.id, t1.name name1, t1.desc desc1, t2.name … Read more
How to UPDATE all columns of a record without having to list every column
It’s not possible. What you’re trying to do is not part of SQL specification and is not supported by any database vendor. See the specifications of SQL UPDATE statements for MySQL, Postgresql, MSSQL, Oracle, Firebird, Teradata. Every one of those supports only below syntax: UPDATE table_reference SET column1 = {expression} [, column2 = {expression}] … … Read more
SQL Update Multiple Fields FROM via a SELECT Statement
Something like this should work (can’t test it right now – from memory): UPDATE SHIPMENT SET OrgAddress1 = BD.OrgAddress1, OrgAddress2 = BD.OrgAddress2, OrgCity = BD.OrgCity, OrgState = BD.OrgState, OrgZip = BD.OrgZip, DestAddress1 = BD.DestAddress1, DestAddress2 = BD.DestAddress2, DestCity = BD.DestCity, DestState = BD.DestState, DestZip = BD.DestZip FROM BookingDetails BD WHERE SHIPMENT.MyID2 = @MyID2 AND BD.MyID … Read more
Update mysql table with data from another table
UPDATE table1 t1, table2 t2 SET t1.field_to_change = t2.field_with_data WHERE t1.field1 = t2.field2;
How to update MySql timestamp column to current timestamp on PHP?
Use this query: UPDATE `table` SET date_date=now(); Sample code can be: <?php $con = mysql_connect(“localhost”,”peter”,”abc123″); if (!$con) { die(‘Could not connect: ‘ . mysql_error()); } mysql_select_db(“my_db”, $con); mysql_query(“UPDATE `table` SET date_date=now()”); mysql_close($con); ?>
SQL UPDATE order of evaluation
MySQL does “left to right” evaluation and does “see” the new values. (Tested on 5.0.45-community-nt-log MySQL Community Edition) Furthermore, from the MySQL manual: “Single-table UPDATE assignments are generally evaluated from left to right. For multiple-table updates, there is no guarantee that assignments are carried out in any particular order.” Now, “generally” is quite vague and … Read more
Within a trigger function, how to get which fields are being updated
If a “source” doesn’t “send an identifier”, the column will be unchanged. Then you cannot detect whether the current UPDATE was done by the same source as the last one or by a source that did not change the column at all. In other words: this does not work properly. If the “source” is identifiable … Read more
Update with result from CTE
Try your UPDATE with the following syntax; UPDATE job SET jobdate = cte.date FROM cte WHERE job.jobid = cte.jobid