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doc-exports/docs/dws/tool/dws_16_0179.html
luhuayi a5e3903f6b DWS TG 910.211 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: luhuayi <luhuayi@huawei.com>
Co-committed-by: luhuayi <luhuayi@huawei.com>
2025-04-23 13:53:01 +00:00

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Quotation Marks

Single Quotation Mark (')

Aliases in MySQL contain single quotation marks, which are not supported by GaussDB(DWS). DSC changes them to double quotation marks during migration.

Input

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select name as 'mingzi' from t1;

Output

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SELECT
  name AS "mingzi"
FROM
  t1;

Backquote (`)

Aliases and column names in MySQL contain backquotes, which are not supported by GaussDB(DWS). DSC changes them to double quotation marks during migration.

Input

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select `name` as `mingzi` from t1;

Output

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SELECT
  "name" AS "mingzi"
FROM
  t1;

Double Quotation Mark (")

In MySQL, constant strings are enclosed in double quotation marks, which are not supported by GaussDB(DWS). DSC changes them to single quotation marks during migration.

Input

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select name from t1 where name = "test2";

Output

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SELECT
  name
FROM
  t1
WHERE
  name = 'test2';