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Insert and update a row at the same time

Posted on 2016-11-08
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Last Modified: 2016-11-09
I am doing this with Oracle database tables:

I want to insert a row and update the row which was inserted at the same time with a date value.

For example I am comparing two tables and getting a result to a third table.

I am using an insert statement as follows:
insert into table3 (select * from table1 A where not exists (select row1 from table2 B where A.row1=B.row1));

All three tables have same columns. They all have a date column.

Whatever result was coming from the table1 should be updated with todays date in table 3.

The insert statement inserts the value into Table3 but I want to update the date with today's value simultaneously.

Is there a way, please let me know? Thank You for all your help!!

Table 1:

S.No            Date          Name         Phone
1                  11-2-13       abc             123
2                   11-4-12      xyz                456
3                   3-1-11         ghj              498

Table 2:

S.No            Date          Name         Phone
1                  11-2-13       abc             123
2                   11-4-12      xyz                456

result after insert and update on table 3

Table 3:

3                   11-8-2016        ghj              498
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Question by:DevSupport
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4 Comments
 
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Expert Comment

by:slightwv (䄆 Netminder)
ID: 41879317
Don't use * in the select and use the sysdate function to return today's date with time

insert into table3 (select  S_No,  sysdate, Name, Phone from table1 A where not exists (select row1 from table2 B where A.row1=B.row1));

If you want the time portion set to zero's, use trunc(sysdate).
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Author Comment

by:DevSupport
ID: 41879388
The select statement works but when I try to insert it says too many values:

SQL Error: ORA-00913: too many values
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Accepted Solution

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slightwv (䄆 Netminder) earned 2000 total points
ID: 41879394
I don't have your table names or descrpitions so I cannot post an exact answer.

You need to match up the number of columns in the table with the number of columns in the select.

If the table has 3 columns, the select needs 3 columns, etc...

It is also a good idea to specify the column names in the insert side as well:
insert into table3(s_no,some_date,name,phone)
    (select  S_No,  sysdate, Name, Phone from table1 A where not exists (select row1 from table2 B where A.row1=B.row1));
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