What in DDL or Data Definition Language Command in SQL Server

Data Definition Language (DDL):

DDL Statements are used to Define the Database Structure or Schema. 

Examples:

CREATECreate Objects in the Database
ALTERAlter Command Structure of  the Database
COMMENTAdd Comments to the Data Dictionary
RENAMERename an Object
DROPDelete Objects from the Database
TRUNCATERemove all Records from a Table






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