Add mariadb examples

2024-05-16 13:05:18 +03:00
parent 83da02ddfd
commit f5c38d9caa
1 changed files with 5 additions and 1 deletions
--- a/docs/progs/mariadb.md
+++ b/docs/progs/mariadb.md
@@ -16,5 +16,9 @@ done

 ## Append field in table
 ```sql
-ALTER TABLE existsTableName ADD COLUMN `newFieldName` varchar(64) NOT NULL DEFAULT '';
+CREATE TABLE tableName_new AS (SELECT * FROM tableName);
+
+ALTER TABLE tableName_new ADD COLUMN `newFieldName` varchar(64) NOT NULL DEFAULT '' AFTER `existFieldName`;
+
+RENAME TABLE tableName TO tableName_old; RENAME TABLE tableName_new TO tableName;
 ```