SQLITE_PREPARE_PERSISTENT(3) | Library Functions Manual | SQLITE_PREPARE_PERSISTENT(3)

# NAME

`SQLITE_PREPARE_PERSISTENT`, `SQLITE_PREPARE_NORMALIZE`, `SQLITE_PREPARE_NO_VTAB` — prepare flags

# SYNOPSIS

`#include <sqlite3.h>`

`#define SQLITE_PREPARE_PERSISTENT`
`#define SQLITE_PREPARE_NORMALIZE`
`#define SQLITE_PREPARE_NO_VTAB`

# DESCRIPTION

These constants define various flags that can be passed into "prepFlags" parameter of the `sqlite3_prepare_v3`() and `sqlite3_prepare16_v3`() interfaces.

New flags may be added in future releases of SQLite.

SQLITE_PREPARE_PERSISTENT
  The SQLITE_PREPARE_PERSISTENT flag is a hint to the query planner that the prepared statement will be retained for a long time and probably reused many times. Without this flag, `sqlite3_prepare_v3`() and `sqlite3_prepare16_v3`() assume that the prepared statement will be used just once or at most a few times and then destroyed using `sqlite3_finalize`() relatively soon. The current implementation acts on this hint by avoiding the use of lookaside memory so as not to deplete the limited store of lookaside memory. Future versions of SQLite may act on this hint differently.
SQLITE_PREPARE_NORMALIZE
  The SQLITE_PREPARE_NORMALIZE flag is a no-op. This flag used to be required for any prepared statement that wanted to use the `sqlite3_normalized_sql`() interface. However, the `sqlite3_normalized_sql`() interface is now available to all prepared statements, regardless of whether or not they use this flag.
SQLITE_PREPARE_NO_VTAB
  The SQLITE_PREPARE_NO_VTAB flag causes the SQL compiler to return an error (error code SQLITE_ERROR) if the statement uses any virtual tables.

# IMPLEMENTATION NOTES

These declarations were extracted from the interface documentation at line 4137.

    #define SQLITE_PREPARE_PERSISTENT              0x01
    #define SQLITE_PREPARE_NORMALIZE               0x02
    #define SQLITE_PREPARE_NO_VTAB                 0x04

# SEE ALSO

sqlite3_finalize(3), sqlite3_prepare(3), sqlite3_sql(3)

January 24, 2024 | NetBSD 11.0