SQL Alter Command in Telugu | SQL Class Day #07 In Telugu

Опубликовано: 19 Февраль 2026
на канале: EXCEL TELUGU VIDEOS

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This Short is About SQL Class Day #07 (SQL series) in Telugu for SQL Developers, Data Analyst and Business Analyst. By Srinivas Reddy Excel Telugu Videos

DDL Command: ALTER Table

ALTER TABLE:

Changing Datatype:
ALTER TABLE emp
ALTER COLUMN eid int;

Changing NULLs:
ALTER TABLE emp ALTER COLUMN eid int NOT NULL;

ADD Column:

Syn:
ALTER TABLE table_name
Add Column_name data_type;

Ex: ALTER TABLE emp
Add EADD VARCHAR(15);

Delete Column:

Syn:
ALTER TABLE Table_name
DROP Column Column_name;
Ex:
ALTER TABLE EMP
DROP COLUMN EADD;

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