---
title: "SPI_execp"
id: spi-spi-execp
pg_version: "20devel"
---
# SPI_execp — execute a statement in read/write mode
## Synopsis
```
int SPI_execp(SPIPlanPtr plan, const Datum * values, const char * nulls, long count)
```
## Description
`SPI_execp` is the same as `SPI_execute_plan`, with the latter's `read_only` parameter always taken as `false`.
## Arguments
**`SPIPlanPtr plan`**
prepared statement (returned by `SPI_prepare`) **`Datum * values`**
An array of actual parameter values. Must have same length as the statement's number of arguments. **`const char * nulls`**
An array describing which parameters are null. Must have same length as the statement's number of arguments. If `nulls` is `NULL` then `SPI_execp` assumes that no parameters are null. Otherwise, each entry of the `nulls` array should be `' '` if the corresponding parameter value is non-null, or `'n'` if the corresponding parameter value is null. (In the latter case, the actual value in the corresponding `values` entry doesn't matter.) Note that `nulls` is not a text string, just an array: it does not need a `'\0'` terminator. **`long count`**
maximum number of rows to return, or `0` for no limit
## Return Value
See `SPI_execute_plan`.
`SPI_processed` and `SPI_tuptable` are set as in `SPI_execute` if successful.