sqlite-datatype

发表于 2019-06-27 分类于数据库阅读次数：本文字数： 451 阅读时长 ≈ 1 分钟

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.

在SQLite3中支持的比较表达式有：”=”, “==”, “<”, “<=”, “>”, “>=”, “!=”, “<>”, “IN”, “NOT IN”, “BETWEEN”, “IS” and “IS NOT”。