ksql_stmt_blob,
ksql_stmt_bytes,
ksql_stmt_double,
ksql_stmt_int,
ksql_stmt_isnull,
ksql_stmt_str —
get the result columns of a statement
library “ksql”
#include
<sys/types.h>
#include
<stdint.h>
#include
<ksql.h>
const void *
ksql_stmt_blob(
struct
ksqlstmt *stmt,
size_t column);
size_t
ksql_stmt_bytes(
struct
ksqlstmt *stmt,
size_t column);
double
ksql_stmt_double(
struct
ksqlstmt *stmt,
size_t column);
int64_t
ksql_stmt_int(
struct
ksqlstmt *stmt,
size_t column);
int
ksql_stmt_isnull(
struct
ksqlstmt *stmt,
size_t column);
const char *
ksql_stmt_str(
struct
ksqlstmt *stmt,
size_t column);
All of these functions will soon be deprecated. See
ksql_result_double(3) for replacements.
These functions functions return results following
ksql_stmt_step(3). They all accept
stmt, the statement allocated with
ksql_stmt_alloc(3); and the
column to query, which starts at zero. The
results are not defined for a statement without a resulting row or for columns
beyond the prepared statement.
The
ksql_stmt_str() and
ksql_stmt_blob() functions return memory
tha tmust be copied prior to subsequent
ksql_stmt_step(3),
ksql_stmt_reset(3), or
ksql_stmt_free(3).
sqlite3_column_blob(3)