apache derby insert data
To insert data into a table in Apache Derby, you can use the INSERT INTO
statement. Here is the basic syntax:
INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);
Here is an example of inserting data into a table in Apache Derby:
INSERT INTO students (id, name, age, email) VALUES (1, 'John Doe', 25, '[email protected]');
In this example, we are inserting a row into the students
table with values for the id
, name
, age
, and email
columns. The values are specified in the same order as the column names in the INSERT INTO
statement.
You can insert multiple rows into a table in a single INSERT INTO
statement by separating the rows with commas. For example:
INSERT INTO students (id, name, age, email) VALUES (1, 'John Doe', 25, '[email protected]'), (2, 'Jane Smith', 30, '[email protected]'), (3, 'Bob Johnson', 40, '[email protected]');
This statement inserts three rows into the students
table at once.
Note that the values you insert must match the data types of the corresponding columns in the table. You can also use subqueries or expressions to calculate the values to insert. You can also omit the column list from the INSERT INTO
statement if you want to insert values into all columns in the table, but this can be risky if the table schema changes in the future. It's always best to explicitly specify the column names when inserting data into a table.