# u65 user exit

The u0065 user exit returns the estimated
number of items in the most recently referenced file.

## Syntax

```
result = oconv("", ’u0065’)
```

## Description

This user exit returns an immediate
estimate of the number of items in the file. This estimate is automatically
updated by any simple AQL count or select that traverses the entire file, or by the TCL file-save command. Normal insert and delete statement executions also update this estimate, although complete
accuracy is not assured because this update is not done under lock.

If the internal estimate has never been updated, then a -1 is
returned.

To use this user exit, a file reference to the desired
file must be created. A dummy read accomplishes
this.

## Example(s)

```
open "myfile"
.
.
* just reference file
read xx from ""
print oconv("","u65")
```

## See also

- [estimate-count command](https://d3codex.com/tcl/estimate-count-command/)

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Source: https://d3codex.com/pickbasic-flashbasic/u65-user-exit/ - part of the D3Codex reference.