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SQL SELECT INTO Examples. The following SQL statement creates a backup copy of Customers: SELECT * INTO CustomersBackup2017. FROM Customers; The following SQL statement uses the IN clause to copy the table into a new table in another database: SELECT * INTO CustomersBackup2017 IN 'Backup.mdb' FROM Customers;
- SQL Insert Into Select
The SQL INSERT INTO SELECT Statement. The INSERT INTO SELECT...
- SQL Case Expression
The SQL CASE Expression. The CASE expression goes through...
- MySQL INSERT INTO SELECT Statement
The INSERT INTO SELECT statement copies data from one table...
- SQL Insert Into Select
24 Ιουν 2024 · The SELECT INTO statement in SQL retrieves data from a database table and stores it into variables or a new table. It's commonly used to copy data from one table to another or to assign values from a query result to variables.
1 Αυγ 2016 · Easiest way to get the csv field names: SELECT CONCAT(GROUP_CONCAT(COLUMN_NAME SEPARATOR ','), "\n") FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'dbname' AND TABLE_NAME = 'tablename' GROUP BY TABLE_NAME.
The INSERT INTO SELECT statement copies data from one table and inserts it into another table. The INSERT INTO SELECT statement requires that the data types in source and target tables matches. Note: The existing records in the target table are unaffected.
For example: mysql> CREATE TABLE test (a INT NOT NULL AUTO_INCREMENT, -> PRIMARY KEY (a), KEY(b)) -> ENGINE=InnoDB SELECT b,c FROM test2; This creates an InnoDB table with three columns, a, b, and c.
You can also use SELECT ... INTO OUTFILE with a VALUES statement to write values directly into a file. An example is shown here: SELECT * FROM (VALUES ROW(1,2,3),ROW(4,5,6),ROW(7,8,9)) AS t INTO OUTFILE '/tmp/select-values.txt';
2 Μαΐ 2024 · SELECT INTO is a statement in SQL that allows you to select data from a table and assign it directly to local variables instead of returning it as a result set. This technique is very useful when you need to manipulate or verify data before proceeding with further operations.
