Structured query language ppt download - Alter table change column type ...
{"Image DocumentName": "Structured Query Language", "Image ImageDescription": "DDL Command - ALTER. To delete a column in a table, syntax: ALTER TABLE table_name DROP COLUMN column_name; Eg)ALTER table customer drop column Birth_Date; To change the data type of a column in a table, ALTER TABLE table_name MODIFY column_name datatype. Eg) ALTER TABLE customer MODIFY Address char(100);", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}