mariadb\_dyncol\_column\_count(3) MariaDB Connector/C mariadb\_dyncol\_column\_count(3)

## [Name](#Name)

mariadb\_dyncol\_column\_count - Get number of columns in dynamic column blob ## Synopsis

```
#include <mariadb_dyncol.h>
enum enum_dyncol_func_result
mariadb_dyncol_column_count(DYNAMIC_COLUMN *str,


                            unsigned int *column_count);
    
```

## [Description](#Description)

Gets the number of columnns in a dynamic column blob.

## [Parameter](#Parameter)

•

\*str - A pointer to a DYNAMIC\_COLUMN structure

•

column\_count - An unsigned integer pointer where the number of columns will be stored.

## [Return value](#Return_value)

Returns ER\_DYNCOL\_OK on success, otherwise error.

## [Notes](#Notes)

•

mariadb\_dyncol\_column\_count() doesn’t count NULL values.

## [See also](#See_also)

•

Dynamic Column Error Codes

Version 3.4

---

Document: mariadb_dyncol_column_count(3) from mariadb-13.1 13.1.1-r2 (Chainguard OS)