【sqlite】SQLite中的数据类型

• 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.