On Mon, Sep 23, 2024 at 12:53 AM Peter J. Holzer <hjp-pgsql@xxxxxx> wrote:
> Thank you so much.
> I was expecting method-3(batch insert) to be the fastest or atleast as you said
> perform with similar speed as method-2 (row by row insert with batch commit)
Oops, sorry! I wrote that the wrong way around. Method 3 is the fastest.
I guess I meant to write "method2 takes about twice as long as method3"
or something like that.
As in case of batch insert below is the fastest one as it inserts multiple rows in one statement. Similarly I understand, Delete can be batched as below. However, can you suggest how an Update can be batched in a simple/generic fashion in JDBC for an input data stream with multiple input values. As because for an update if we write as below , it will just do one row update at a time?
Update <table_name> SET column1=?, column2=?, column3=? where <PK_Column>=? ;
Delete from <table_name> where column_name in (<value1>, <value2>,<value3>...);
