I want to change the column positions of my database table without losing data. For example, here is the current table: id name email password To this: id password name email

Aug 31, 2009 · Will alter table delete the data on the table or fail on the execution if something is not complaint with the new column type? ALTER TABLE tablename MODIFY columnname INTEGER …

Aug 18, 2009 · The database is latin1_general_ci now and I want to change collation to utf8mb4_general_ci. Is there any setting in PhpMyAdmin to change collation of database, table, …

Jul 3, 2012 · The column is optional. You could just use ALTER TABLE foobar_data MODIFY col VARCHAR(255) NOT NULL DEFAULT '{}'; or ALTER TABLE foobar_data CHANGE col col …

I am trying to rename a column in MySQL community server 5.5.27 using this SQL expression: ALTER TABLE table_name RENAME COLUMN old_col_name TO new_col_name; I also tried ALTER …

Jan 2, 2013 · The simplest way to remove constraint is to use syntax ALTER TABLE tbl_name DROP CONSTRAINT symbol; introduced in MySQL 8.0.19: As of MySQL 8.0.19, ALTER TABLE permits …

I have a mySQL table called test: create table test( locationExpect varchar(120) NOT NULL; ); I want to change the locationExpect column to: create table test( locationExpect varchar(120)...

Most of the answers address how to add a column safely in a stored procedure, I had the need to add a column to a table safely without using a stored proc and discovered that MySQL does not allow the …

Dec 20, 2012 · ALTER TABLE tbl_Country DROP COLUMN IsDeleted, DROP COLUMN CountryName; This allows you to DROP, ADD and ALTER multiple columns on the same table in the one …

803 ALTER TABLE `table` ADD INDEX `product_id_index` (`product_id`) Never compare integer to strings in MySQL. If id is int, remove the quotes.