![]() This column may contain values using all five storage classes.īehaves the same as a column with NUMERIC affinity with an exception in a CAST expression.īehaves like a column with NUMERIC affinity except that it forces integer values into floating point representationĪ column with affinity NONE does not prefer one storage class over another and no attempt is made to coerce data from one storage class into another. This column stores all data using storage classes NULL, TEXT or BLOB. The type affinity of a column is the recommended type for data stored in that column. SQLite supports the concept of "type affinity" on columns. else An optional SQL expression which will be the evaluated result of the CASE construct if all expressions within case.whens evaluate to false. If you are using SQLite and want case-sensitive partial string matching. ![]() In SQLite, Boolean values are stored as integers i.e. The return value of an in expression is always coerced to a boolean value. 27 Actually, SQLite does support BOOLEAN type, but may be not exactly in the way you expect. SQLite does not Provide a separate Boolean storage class. The value is a blob of data, stored exactly as it was input. Text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16LE). A check constraint allows you to specify that the value in a certain column must satisfy a Boolean (truth-value) expression. Signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the valueĪ floating point value, 8-byte IEEE floating point number. Storage classes Every value which is stored in an SQLite database has one of the following storage classes. In SQLite, the data type of a value is associated with the value itself, not with its container. MSSQL databases typically use the bit data type while SQLite databases typically use a regular. SQLite uses a different and more general dynamic type system. MSSQL and SQLite do not have a boolean data type for columns.SQLite Data Types are quite different than the normal SQL data types.
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