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How to insert data into table from anathor table?


Asked by Yosef Kemp on Dec 02, 2021 FAQ



To insert data a table from anathor table we must use insert statement with select statement. At hhis queries, we don’t use values statement. Insert into statement’s column count and select statement’s column count must be the same Example 2: Add the authors whose name contains “a” character from autors table to students table.
Besides,
To Insert into table from another table we use insert statement with select statement. To insert data a table from anathor table we must use insert statement with select statement. At hhis queries, we don’t use values statement. Insert into statement’s column count and select statement’s column count must be the same
Just so, SELECT statement provides an easy way to insert rows into a table from another table. If you want to copy data from one table to another in the same database, use INSERT INTO SELECT statement in MySQL. It’s a very quick process to copy large amount data from a table and insert into...
Keeping this in consideration,
To insert values from another table there's two methods: For a single row insert, you can put the select statement directly in the where clause: create table t (x integer); insert into t values ((select 1 from dual)); 1 row inserted. select * from t; X ----- 1 to insert multiple rows, use a select statement instead of a values clause:
Likewise,
The updated record is available in the INSERTED table. The following Trigger is fetching the CustomerId of the updated record. In order to find which column is updated, you will need to use UPDATE function and pass the Column name of the Table to it.