Adding multiple columns AFTER a specific column in MySQL
ALTER TABLE users ADD COLUMN count SMALLINT(6) NOT NULL, ADD COLUMN log VARCHAR(12) NOT NULL, ADD COLUMN status INT(10) UNSIGNED NOT NULL AFTER …
mysql - How to insert columns at a specific position in existing …
Jan 24, 2014 · I created a table with 85 columns but I missed one column. The missed column should be the 57th one. I don't want to drop that table and create it again. I'm looking to edit …
mysql - Adding a new SQL column with a default value - Stack …
Jan 30, 2014 · column_definition clauses use the same syntax for ADD and CHANGE as for CREATE TABLE. See Section 12.1.17, “CREATE TABLE Syntax”. And from the linked page:
mysql - Add Auto-Increment ID to existing table? - Stack Overflow
Feb 7, 2013 · Then add the id column (without a primary index). I have used a big int because I am going to have lots of data but INT(11) should work just as well: ALTER TABLE …
mysql - How do I add a column into a table? - Stack Overflow
Aug 12, 2019 · This is how you have to add a new column into an existing table in mysql. ALTER TABLE tabel_name ADD COLUMN new_field_name <data_type> So your modify query has to …
mysql - Column calculated from another column? - Stack Overflow
Mar 30, 2015 · Generated Column is one of the good approaches for MySQL version 5.7.6 and above. There are two kinds of Generated Columns: Virtual (default) - column will be calculated …
sql - How to add column using alter in mysql? - Stack Overflow
May 19, 2017 · How to add the column using alter by inputting the values on it? As the example, I want to add tempID's column which has value "3" on every row. Maybe it's something like this. …
What does the Alter Table syntax look like for adding a DATETIME …
Jan 26, 2011 · ALTER TABLE yourTable ADD COLUMN new_date DATETIME NOT NULL DEFAULT 20110126143000 AFTER preceding_col or ALTER TABLE yourTable ADD …
mysql - Adding new enum column to an existing table - Stack …
May 9, 2015 · I'm trying to add a gender column to my table with this query: ALTER TABLE QRCodeUser ADD gender CHAR(1 ...
mysql - Adding a Boolean column into an existing table - Stack …
Jan 26, 2017 · I'm trying to add a boolean column into an existing table. alter table chatuser add activerecord bool; alter table chatuser add activerecord boolean; where activerecord is my …