Module Sqlite3.Data

type t =
  1. | NONE
  2. | NULL
  3. | INT of int64
  4. | FLOAT of float
  5. | TEXT of string
  6. | BLOB of string

Type of columns

val opt_text : string option -> t

opt_text value converts value to a Data.t TEXT value, converting None to SQLite NULL.

val opt_int : int option -> t

opt_int value converts value to a Data.t INT value, converting None to SQLite NULL.

val opt_nativeint : nativeint option -> t

opt_nativeint value converts value to a Data.t INT value, converting None to SQLite NULL.

val opt_int32 : int32 option -> t

opt_int32 value converts value to a Data.t INT value, converting None to SQLite NULL.

val opt_int64 : int64 option -> t

opt_int64 value converts value to a Data.t INT value, converting None to SQLite NULL.

val opt_float : float option -> t

opt_float value converts value to a Data.t FLOAT value, converting None to SQLite NULL.

val opt_bool : bool option -> t

opt_bool value converts value to a Data.t INT value, converting None to SQLite NULL.

val to_string_exn : t -> string

to_string_exn data converts TEXT and BLOB data to a string.

val to_int_exn : t -> int

to_int_exn data converts INT data to an int.

  • raises Failure

    if the integer conversion over- or underflows.

val to_nativeint_exn : t -> nativeint

to_nativeint_exn data converts INT data to a nativeint.

  • raises Failure

    if the integer conversion over- or underflows.

val to_int32_exn : t -> int32

to_int32_exn data converts INT data to an int32.

  • raises Failure

    if the integer conversion over- or underflows.

val to_int64_exn : t -> int64

to_int64_exn data converts INT data to an int64.

val to_float_exn : t -> float

to_float_exn data converts FLOAT data to a float.

val to_bool_exn : t -> bool

to_bool_exn data converts INT data to a bool.

val to_string : t -> string option

to_string data converts data to Some string or None if it is not a valid conversion. This method also converts data of type BLOB to a string.

val to_int : t -> int option

to_int data converts data to Some int or None if it is not a valid conversion.

  • raises Failure

    if the integer conversion over- or underflows.

val to_nativeint : t -> nativeint option

to_nativeint data converts data to Some nativeint or None if it is not a valid conversion.

  • raises Failure

    if the integer conversion over- or underflows.

val to_int32 : t -> int32 option

to_int32 data converts data to Some int32 or None if it is not a valid conversion.

  • raises Failure

    if the integer conversion over- or underflows.

val to_int64 : t -> int64 option

to_int64 data converts data to Some int64 or None if it is not a valid conversion.

val to_float : t -> float option

to_float data converts data to Some float or None if it is not a valid conversion.

val to_bool : t -> bool option

to_bool data converts data to Some bool or None if it is not a valid conversion.

val to_string_coerce : t -> string

to_string_coerce data coerces data to a string, using coercion on ints, NULLs, floats, and other data types.

val to_string_debug : t -> string

to_string_debug data converts data to a string including the data constructor. The contents of blobs will not be printed, only its length. Useful for debugging.