Update count in pl sql

In the above syntax, we use an update command with different parameters as follows. Basically, there are two different ways to perform the update command. For update purposes, we need different clauses such as SET, Where and we can use them as per our requirement.

Normally the update command is used for a single column, or we can use it for multiple column updates as per user requirements. In a second way, we need one more table with different records; then, we need to perform the update command with a sub-query. In this method, we can update records from another table with where clause, the where clause basically used to specify which row of the table we need to update. First, we need to create a new table by using the create table command as follows.

By using create table statement, we created a new table name, studentA, with different attributes and different data types. The final output of the above statement we illustrated by using the below screenshot is as follows. By using the above statement, we inserted five records as shown in the below screenshot as follows. Now perform the update command. Suppose we need to update the student city of Jenny at that time; we can use the following statement as follows. One more thing is that here we update only a single column.

By using the above statement, we updated two columns because, in my table, there are two columns, but in your case, we updated more than two columns. First, we need to create the new table by using the create table statement as follows. By using the above statement, we created a new table that deptB as shown, and we insert some records into the deptB.

In the above example, we updated records from another table, where we need to update studentA table from the deptB table, so that is why we need to build some relation between these two tables.

That means we need a common column in both tables then, and then we can perform the update. Then it stays with the number of line affected by the last DML operation:. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Collectives on Stack Overflow. Learn more. Asked 12 years, 8 months ago. Active 2 years, 8 months ago. Viewed k times. Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Toolkit 9, 7 7 gold badges 53 53 silver badges 64 64 bronze badges. Clive Clive 3, 1 1 gold badge 18 18 silver badges 9 9 bronze badges.

What could be? Ali H Ali H 7 7 silver badges 17 17 bronze badges. I think that Ali H's point is that it's not necessary to assign it to a variable until you have another SQL statement that would affect the row count. That being said, I agree that it should be assigned to a variable to avoid causing a bug later should someone add another SQL statement before it is called. And, this answer from Ali H should be a comment on Clive's answer rather than posted as a separate answer — Kirby.

Chomel J.