Alter table 열 추가 확인

코드 예제

21
0

alter table 열 추가

ALTER TABLE table_name
ADD column_name datatype;
1
0

sql alter table 열 추가 존재하는 경우

IF NOT EXISTS (
  SELECT
    *
  FROM
    INFORMATION_SCHEMA.COLUMNS
  WHERE
    TABLE_NAME = 'table_name' AND COLUMN_NAME = 'col_name')
BEGIN
  ALTER TABLE table_name
    ADD col_name data_type NULL
END;

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