Data is stored and retrieved through rows. More...
Data Structures | |
| struct | db_bind_t |
| Row binding description. More... | |
Typedefs | |
| typedef struct db_row_t_s * | db_row_t |
Functions | |
| db_row_t | db_alloc_row (const db_bind_t *, db_fieldno_t nbinds) |
| db_row_t | db_alloc_cursor_row (db_cursor_t) |
| db_result_t | db_free_row (db_row_t) |
| db_len_t | db_get_field_size (db_row_t, db_fieldno_t) |
| db_vartype_t | db_get_field_type (db_row_t, db_fieldno_t) |
| db_len_t | db_get_field_len (db_row_t, db_fieldno_t) |
| db_result_t | db_set_field_len (db_row_t, db_fieldno_t, db_len_t) |
| void * | db_get_field_buffer (db_row_t, db_fieldno_t) |
| db_flags_t | db_get_field_flags (db_row_t hrow, db_fieldno_t nfield) |
| db_len_t | db_get_field_data (db_row_t, db_fieldno_t, db_vartype_t data_type, void *data_ptr, db_len_t data_size) |
| db_result_t | db_set_field_data (db_row_t, db_fieldno_t, db_vartype_t data_type, const void *data_ptr, db_len_t data_length) |
| int | db_is_null (db_row_t, db_fieldno_t) |
| db_result_t | db_set_null (db_row_t, db_fieldno_t) |
| db_result_t | db_bind_field (db_row_t hrow, const db_bind_t *) |
| db_result_t | db_unbind_field (db_row_t, db_fieldno_t) |
| db_result_t | db_bind_init (db_bind_t *) |
| db_result_t | db_bind_destroy (db_bind_t *) |
Length Indicator Values | |
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| #define | DB_FIELD_NULL _DB_FIELD_NULL |
| #define | DB_NTS _DB_NTS |
| #define | DB_BLOB_CHSIZE _DB_BLOB_CHSIZE |
| #define | DB_AUTOFIELD _DB_AUTOFIELD |
Bind Types | |
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| #define | DB_BIND_RELATIVE _DB_BIND_RELATIVE |
| #define | DB_BIND_ABSOLUTE _DB_BIND_ABSOLUTE |
| #define | DB_BIND_MASK _DB_BIND_MASK |
Data Binding | |
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| #define | DB_ARRAY_DIM(x) (sizeof(x) / sizeof(x[0])) |
| #define | DB_BIND_STRUCT_MEMBER(field_no, type, bind_struct, member) { field_no, type, DB_BIND_OFFSET(bind_struct, member), DB_BIND_SIZE(bind_struct, member), -1, DB_BIND_RELATIVE } |
| #define | DB_BIND_VAR(field_no, type, var) { field_no, type, DB_BIND_ADDRESS(&var), sizeof(var), DB_BIND_ADDRESS(NULL), DB_BIND_ABSOLUTE } |
| #define | DB_BIND_STR(field_no, type, var) { field_no, type, DB_BIND_ADDRESS(var), sizeof(var), DB_BIND_ADDRESS(NULL), DB_BIND_ABSOLUTE } |
| #define | DB_BIND_PTR(field_no, type, var, size) { field_no, type, DB_BIND_ADDRESS(var), size, DB_BIND_ADDRESS(NULL), DB_BIND_ABSOLUTE } |
| #define | DB_BIND_STRUCT_MEMBER_IND(field_no, type, bind_struct, value, ind) { field_no, type, DB_BIND_OFFSET(bind_struct, value), DB_BIND_SIZE(bind_struct, value), DB_BIND_OFFSET(bind_struct, ind), DB_BIND_RELATIVE } |
| #define | DB_BIND_VAR_IND(field_no, type, var, ind) { field_no, type, DB_BIND_ADDRESS(&var), sizeof(var), DB_BIND_ADDRESS(ind), DB_BIND_ABSOLUTE } |
| #define | DB_BIND_STR_IND(field_no, type, var, ind) { field_no, type, DB_BIND_ADDRESS(var), sizeof(var), DB_BIND_ADDRESS(ind), DB_BIND_ABSOLUTE } |
| #define | DB_BIND_PTR_IND(field_no, type, var, size, ind) { field_no, type, DB_BIND_ADDRESS(var), size, DB_BIND_ADDRESS(ind), DB_BIND_ABSOLUTE } |
Data is stored and retrieved through rows.
A row is a set of temporary buffers for storing the contents of database fields. Each field in a row can be stored in one of three locations: a managed internal buffer, a local variable referenced by memory address, or a member of a data structure. A row variable is independent of any specific row in the database and can be re-used for many insert, fetch and update operations.
