SQCloudVMBind

bool SQCloudVMBindDouble (SQCloudVM *vm, int index, double value);
bool SQCloudVMBindInt (SQCloudVM *vm, int index, int value);
bool SQCloudVMBindInt64 (SQCloudVM *vm, int index, int64_t value);
bool SQCloudVMBindNull (SQCloudVM *vm, int index);
bool SQCloudVMBindText (SQCloudVM *vm, int index, const char *value, int32_t len);
bool SQCloudVMBindBlob (SQCloudVM *vm, int index, void *value, int32_t len);
bool SQCloudVMBindZeroBlob (SQCloudVM *vm, int index, int64_t len);

Description

Bind a value to a compiled SQL statement. In the SQL statement text input to SQCloudVMCompile, literals may be replaced by a parameter that matches one of following templates:

• ?
• ?NNN
• :VVV
• @VVV
• $VVV

In the templates above, NNN represents an integer literal, and VVV represents an alphanumeric identifier. The values of these parameters can be set using the SQCloudVMBind*() routines defined here. These functions resemble the sqlite3_bind_* SQLite APIs.

Parameters

• vm: A valid VM obtained by SQCloudVMCompile.
• index: Represents the index of the SQL parameter to be set. The leftmost SQL parameter has an index of 1. When the same named SQL parameter is used more than once, second and subsequent occurrences have the same index as the first occurrence. The index for named parameters can be looked up using the SQCloudVMBindParameterIndex API if desired. The index for “?NNN” parameters is the value of NNN.
• value: The the value to bind to the parameter.
• len: The number of bytes in the parameter. To be clear: the value is the number of bytes in the value, not the number of characters.

Return value

If the value is successfully bound without any errors, the function will return true. If an error occurs during the binding process, the function will return false.

Example

int main (int argc, const char * argv[]) {
    // setup config
    SQCloudConfig config = {0};
    config.username = "myusername";
    config.password = "mypassword"

    SQCloudConnection *conn = SQCloudConnect("myproject.sqlite.cloud", SQCLOUD_DEFAULT_PORT, &config);
    if (SQCloudIsError(conn)) {
        printf("ERROR connecting: %s (%d)\n", SQCloudErrorMsg(conn), SQCloudErrorCode(conn));
        return -1;
    } else {
        printf("Connection to host OK...\n\n");
    }

    // choose a database first
    SQCloudResult *r = SQCloudExec(conn, "USE DATABASE mydatabase.sqlite;");

    // compile the INSERT SQL statement
    SQCloudVM *vm = SQCloudVMCompile(conn, "INSERT INTO table1 (col1, col2, col3, col4) VALUES (?1, ?2, ?3, ?4);", -1, NULL);

    // bind values
    bool r1 = SQCloudVMBindText(vm, 1, "Hello World", );
    bool r2 = SQCloudVMBindInt(vm, 2, 42);
    bool r3 = SQCloudVMBindDouble(vm, 3, 3.1415);
    bool r4 = SQCloudVMBindNull(vm, 4);

    // ...
}