| 数据库 | validationQuery |
| Oracle | select 1 from dual |
| MySQL | select 1 |
| Microsoft SQL Server | select 1 |
| DB2 | select 1 from sysibm.sysdummy1 |
| SQLite | select 1 |
| HSQLDB | select 1 from INFORMATION_SCHEMA.SYSTEM_USERS |
| postgresql | select version() |
| ingres | select 1 |
| Apache Derby | select 1 |
| H2 | select 1 |
| Informix | select count(*) from systables |
不同数据库的validationQuery检查语句
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2022-01-30
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