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How to migrate String Datatype column to BigDecimal Datatype column in Talend


How to migrate String Datatype column to BigDecimal Datatype column in Talend

By : growflet
Date : November 22 2020, 01:01 AM
Any of those help You can do it using tMap expression builder, see the image for more details.
code :
row1.id!=null?new BigDecimal(row1.id):new BigDecimal(0)


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SQL Server : view column datatype does not change when underlying table datatype is changed?

SQL Server : view column datatype does not change when underlying table datatype is changed?


By : Mike
Date : March 29 2020, 07:55 AM
this will help Yes, this is expected. Tables can be changed in ways that make the views completely invalid. If you want to prevent this from happening, you can use the WITH SCHEMABINDING option when creating the view. From the linked article:
Binds the view to the schema of the underlying table or tables. When SCHEMABINDING is specified, the base table or tables cannot be modified in a way that would affect the view definition. The view definition itself must first be modified or dropped to remove dependencies on the table that is to be modified.
update/fix column datatype and records from string to sort by numeric datatype in mysql innoDB database

update/fix column datatype and records from string to sort by numeric datatype in mysql innoDB database


By : Matteo Renzi
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , create a new column in the table, let's call it newfield then do
UPDATE mytable set newfield = CAST(LEFT(oldfield, length(oldfield)-1))
Using `BEFORE INSERT` trigger to change the datatype of incoming data to match the column datatype in PostgreSQL

Using `BEFORE INSERT` trigger to change the datatype of incoming data to match the column datatype in PostgreSQL


By : Shahbaz Alam
Date : March 29 2020, 07:55 AM
wish of those help No, you can not use this approach. The reason is that the backend already populates a record with the values that are to be inserted into the table. That is in the form of the NEW parameter that is available in the trigger. So the error is thrown even before the trigger fires.
The same applies to rules, incidentally, so Kevin's suggestion in his comment won't work.
Convert String Datatype column to "Embeddedlist" datatype in Orientdb

Convert String Datatype column to "Embeddedlist" datatype in Orientdb


By : Tas
Date : March 29 2020, 07:55 AM
With these it helps I tried to reproduce your problem
code :
update user set newProperty=userUnits.asList()
update user remove userUnits
var g=orient.getGraphNoTx();
g.command("sql","CREATE PROPERTY User.newProperty embeddedlist" );
var users = g.command("sql","select from User");
for(i=0;i<users.length;i++){
    var record=users[i];
    var id=record.getId();
    var userUnits=record.getProperty("userUnits");
    var array=userUnits.split(",");
    var myvalue='"';
    for(j=0;j<array.length;j++){
        if(j==0)
            myvalue+=array[j]+'"';
        else
            myvalue+=',"'+array[j]+'"';
    }
    g.command("sql","UPDATE " + id + " set newProperty = [ " + myvalue + "]");
}
g.command("sql","UPDATE user REMOVE " + userUnits);
Column of datatype RowVersion is turned into a column of datatype Timestamp

Column of datatype RowVersion is turned into a column of datatype Timestamp


By : user3289060
Date : March 29 2020, 07:55 AM
will be helpful for those in need rowversion is the new name for the older timestampdata type. They basically are the same data type, so it's not a case of turning one into the other.
Some of the drivers still use the old name. Many of us have complained to Microsoft about this for quite a while. Because of a desire to not break backwards compatibility, I can't see it changing too soon.
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