Search code examples
sqlsql-serverstringtextalter

How to create a new column in SQL based on information in a column?


I am trying to search message codes within 1 table and think it would be easier if I create a new column that specifies each code within the column with the corresponding formula.

So I am trying to create a new column within the table called MessageCode which specifies each number after "MessageCode": but I am not sure how to do this. In the end I want a table that basically gives back Id, Title, Enabled, Message Code and Actions.

If you need further information please let me know.Also I am using SSMS.

ID      Title     Enabled Mark Colour       Condition                                                     Action
1914    ABW: 012    1       -256           {"Operator":1,"Children":[{"Operator":1,"LeftOperand":}  [{"ActionType":1,"Results":[{"ExcludeApplicationGroups":[5],"IncludeEZY":false,"StartDate":"2022-07-08T00:00:00","MessageCode":9109,"Ordinal":32,"Level":2,"Status":2,"LocalisedMessages":[{"Message":"<p>Passengers are advised to hold travel insurance that covers Covid-19.</p>"},{"LanguageId":50,"Message":"<p>Passagiers wordt aangeraden een reisverzekering af te sluiten die het Covid-19 dekt.</p>"},{"LanguageId":75,"Message":"<p><strong>&nbsp;</strong>Il est conseillé aux passagers d'avoir une assurance voyage qui couvre le Covid-19.</p>"},{"LanguageId":156,"Message":"<p><strong>&nbsp;</strong>Se aconseja a los pasajeros que tengan un seguro de viaje que cubra Covid-19.</p>"},{"LanguageId":140,"Message":"<p><strong>&nbsp;</strong>Os passageiros são aconselhados a possuir um seguro de viagem que cubra o Covid-19.</p>"},{"LanguageId":141,"Message":"<p><strong>&nbsp;</strong>Aconselha-se os passageiros a possuírem um seguro de viagem que cubra o Covid-19.</p>"}]}]}]

Solution

  • You can try to use the below query to read the value from Action column

    SELECT ID, Title, Enabled, MarkColour, Condition,
           JSON_VALUE(Action, '$[0].Results[0].MessageCode') AS MessageCode
    FROM <YourTableName>