Updated on 2024-06-03 GMT+08:00

PQsendQueryParams

Function

Commits a command with separated parameters to the server without waiting for the result.

Prototype

int PQsendQueryParams(PGconn* conn, const char* command, int nParams, const Oid* paramTypes,
    const char* const* paramValues, const int* paramLengths, const int* paramFormats, int resultFormat);

Parameter

Table 1 PQsendQueryParams parameters

Keyword

Parameter Description

conn

Points to the object pointer that contains the connection information.

command

Query string to be executed.

nParams

Parameter quantity.

paramTypes

Parameter type.

paramValues

Parameter value.

paramLengths

Parameter length.

paramFormats

Parameter format.

resultFormat

Result format.

Return Value

int indicates the execution result. 1 indicates successful execution and 0 indicates an execution failure. The failure cause is stored in conn->errorMessage.

Precautions

This function is equivalent to PQsendQuery. The only difference is that query parameters can be specified separately from the query string. The parameter processing of this function is similar to that of PQexecParams. It cannot work on connections using protocol v2.0, and it allows only one command to appear in the query string.