what are Datatypes in SQLite supporting android

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栀梦 2021-02-01 12:20

Can anyone please tell me the LIST OF DATATYPES in SQLITE supporting ANDROID.

I want to confirm about TIME and DATE datatypes.

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  • 2021-02-01 12:53

    As said at Datatypes In SQLite Version 3:

    Each value stored in an SQLite database (or manipulated by the database engine) has one of the following storage classes:

    • NULL. The value is a NULL value.

    • INTEGER. The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the value.

    • REAL. The value is a floating point value, stored as an 8-byte IEEE floating point number.

    • TEXT. The value is a text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16LE).

    • BLOB. The value is a blob of data, stored exactly as it was input.

    And for TIME and DATE storage the following is stated:

    Date and Time Datatype

    SQLite does not have a storage class set aside for storing dates and/or times. Instead, the built-in Date And Time Functions of SQLite are capable of storing dates and times as TEXT, REAL, or INTEGER values:

    • TEXT as ISO8601 strings ("YYYY-MM-DD HH:MM:SS.SSS").
    • REAL as Julian day numbers, the number of days since noon in Greenwich on November 24, 4714 B.C. according to the proleptic Gregorian calendar.
    • INTEGER as Unix Time, the number of seconds since 1970-01-01 00:00:00 UTC.
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  • 2021-02-01 13:03

    First of all check the Sqlite3 version for each android API version: https://stackoverflow.com/a/4377116/737636

    I don't think that this is the full list of versions and I think that also OEM can change the SQLite's version installed inside.

    Anyway, if you take a quick look you can see that the base version is 3.x

    This is the list of supported datatypes by SQLite3 (the same used inside android): http://www.sqlite.org/datatype3.html

    and here you are :)

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  • 2021-02-01 13:12

    Here is a list of SQLite's data types

    TIME and DATE are supported indirectly.

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