> For the complete documentation index, see [llms.txt](https://support.powerio.com/hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.powerio.com/hub/codesys-hvac/mysql-library/datentypen/global/parameterlist.md).

# ParameterList

**Detaillierte Beschreibung**

Diese Parameter können geändert werden, um optionale Einstellungen zu konfigurieren. Bitte ändern Sie die Parameter nur, wenn Sie wissen, was Sie tun. Die Standardparameter sind getestet und für den Best-Practice-Einsatz vorgesehen.

| Scope    | Name                             | Type  | Initial     | Comment                                                                                                                                       |
| -------- | -------------------------------- | ----- | ----------- | --------------------------------------------------------------------------------------------------------------------------------------------- |
| Constant | gc\_MySQL\_wClientFlag           | WORD  | 16#8601     | Used in: MySQL\_Open \| Desc: Client Flag \| Default: 16#8601                                                                                 |
| Constant | gc\_MySQL\_wExtClientFlag        | WORD  | 16#3        | Used in: MySQL\_Open \| Desc: Extended Client Flag (For More Information see documentation \| Default:                                        |
| Constant | gc\_MySQL\_dwMaxPackets          | DWORD | 1024        | Used in: MySQL\_Open \| Desc: Number of maximum bytes in a client packet \| Default: 1024                                                     |
| Constant | gc\_MySQL\_tConnTimeOut          | TIME  | TIME#10s0ms | Used in: MySQL\_Open, MySQL\_Close \| Desc: Timeout for Open and Close Process \| Default: 10 Sec                                             |
| Constant | gc\_MySQL\_iStatementMax         | INT   | 10          | Used in: MySQL\_Exec, MySQL\_Query \| Desc: Upper Bound of the arrSQLStatement \| Default: 10                                                 |
| Constant | gc\_MySQL\_iStatementLength      | INT   | 100         | Used in: MySQL\_Exec, MySQL\_Query \| Desc: Size in Bytes of the arrSQLStatement \| Default: 100                                              |
| Constant | gc\_MySQL\_xClearDataSet         | BOOL  | FALSE       | Used in: MySQL\_Query \| Desc: Clear Result Set before Use (Caution: needs a lot of cycles) \| Default: FALSE                                 |
| Constant | gc\_MySQL\_tReceiveResponseTime  | TIME  | TIME#50ms   | Used in: MySQL\_Query \| Desc: Wait time before processing received response data (Info: expand this value for slow Servers) \| Default: 50MS |
| Constant | gc\_MySQL\_dwMaxColumns          | DWORD | 25          | Used in: MySQL\_DataSet \| Desc: Number of maximum columns which can be processed \| Default: 25 columns                                      |
| Constant | gc\_MySQL\_dwMaxRows             | DWORD | 40          | Used in: MySQL\_DataSet \| Desc: Number of maximum rows which can be processed \| Default: 40 rows                                            |
| Constant | gc\_MySQL\_dwMaxRowSize          | DWORD | 500         | Used in: MySQL\_DataSet \| Desc: Maximum lenght in bytes of one row which can be processed \| Default: 500 bytes                              |
| Constant | gc\_MySQL\_dwTxBufferSize        | DWORD | 8000        | Used in: MySQL\_ConnectionString \| Desc: Transmit Buffer Size \| Default: 8000                                                               |
| Constant | gc\_MySQL\_dwRxBufferSize        | DWORD | 40000       | Used in: MySQL\_ConnectionString \| Desc: Receive Buffer Size \| Default 40000                                                                |
| Constant | gc\_MySQL\_bCharsetNumber        | BYTE  | 16#8        | Used in: MySQL\_GetStringValue \| Desc: Character Set \| Default: 16#08 for Latin1                                                            |
| Constant | gc\_MySQL\_dwMaxColumnNameLength | DWORD | 80          | Used in: \<PRIVATE> \| Desc: Maximum lenght of a column name in bytes \| Default: 80                                                          |


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