Mysql join on multiple columns7/21/2023 ![]() ![]() ![]() In this tutorial, you have learned how to use the SQL Server ALTER TABLE ADD statement to add one or more columns to a table. The following statement adds two new columns named amount and customer_name to the sales.quotations table: ALTER TABLE sales.quotations To add a new column named description to the sales.quotations table, you use the following statement: ALTER TABLE sales.quotations The following statement creates a new table named sales.quotations: CREATE TABLE sales.quotations ( SQL Server ALTER TABLE ADD column examples Note that SQL Server doesn’t support the syntax for adding a column to a table after an existing column as MySQL does. In this syntax, you specify a comma-separated list of columns that you want to add to a table after the ADD clause. If you want to add multiple columns to a table at once using a single ALTER TABLE statement, you use the following syntax: ALTER TABLE table_nameĬolumn_name_1 data_type_1 column_constraint_1,Ĭolumn_name_2 data_type_2 column_constraint_2,Ĭolumn_name_n data_type_n column_constraint_n
0 Comments
Leave a Reply. |