conditionally update or insert using single query in Oracle table [closed]

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Closed 2 days ago.

I am using jdbc to insert or update into a table based on the condition, if the data already exists in the table. I am getting data from an external source. Is it possible to have a single query to perform this task? scenario looks somewhat like this:

    if (if row with the data exists){
     perform UPDATE
    }else{
     perform INSERT
    }

回答1:

You can use

JSON_TABLE(JsonData,'$' , columns(column1    VARCHAR2(50 CHAR) PATH '$.column1'))

which will convert JSON data into relational view and then use the same in MERGE.

Refer this.

来源：https://stackoverflow.com/questions/60484178/conditionally-update-or-insert-using-single-query-in-oracle-table