Description:
Connect to R2DBC and return a cursor.
Syntax:
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r2dbc_open(url) |
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Note:
The external library function connects to R2DBC to access databases, including H2, MariaDB, MySQL, Oracle, Postgresql and SQL server.
When connecting to R2DBC to try to access H2, “options=DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE” in the URL cannot be omitted, otherwise there will be error about the table under handling.
Parameters:
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url |
The URL for accessing a database, whose format is r2dbc:dbtype://<host>:port/<database> |
Return value:
A cursor
Example:
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A |
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1 |
=r2dbc_open("r2dbcs:mysql://root:123456@127.0.0.1:3306/mytest") |
Connect to mysql database |
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2 |
=r2dbc_open("r2dbc:h2:mem:///testdb?options=DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE") |
Connect to H2 database |
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3 |
=r2dbc_open("r2dbc:postgres://postgres:123456@127.0.0.1:5433/mydb1") |
Connect to postgresql database |