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This article shows you how MySQL changes the int type to bigint SQL sentence concatenation, the content is concise and easy to understand, and can definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

SELECT

CONCAT (

"alter table"

TABLE_SCHEMA

"."

TABLE_NAME

"modify"

COLUMN_NAME

Bigint (20)

IF

(IS_NULLABLE = 'NO', "NOT NULL", "")

IF

(EXTRA = ",", "AUTO_INCREMENT")

IF

(COLUMN_DEFAULT IS NULL, ", CONCAT (" DEFAULT ", COLUMN_DEFAULT))

IF

(COLUMN_COMMENT = "", "", CONCAT ("COMMENT'", COLUMN_COMMENT, "'"))

";"

) AS alter_sql

FROM

Information_schema.COLUMNS

WHERE

(COLUMN_NAME = 'orderid' OR COLUMN_NAME =' order_id')

AND DATA_TYPE = 'int'

The above is how MySQL changes the int type to bigint SQL statement splicing. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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