Mckoi SQL supports several data types including BOOLEAN, CHAR, VARCHAR, CLOB, TINYINT, SMALLINT, INTEGER, BIGINT, FLOAT, REAL, NUMERIC, DECIMAL, DATE, TIME, TIMESTAMP, BINARY, VARBINARY, LONGVARBINARY, and BLOB. These types support integers, floating point numbers, strings, binary objects, dates, times, and Java objects. String types can be up to 1 billion characters, while binary objects can be up to 2 billion bytes. Numeric types support a wide range of precision. Dates and timestamps support representation many years in the past and future.

1. The following is a list of SQL types that Mckoi SQL supports;
BOOLEAN - A boolean value either true, false or null.
CHAR(size) or CHARACTER(size) - A string of fixed length. The maximum size of a CHAR string is 1 billion
characters.
VARCHAR(size), LONGVARCHAR(size), CHARACTER VARYING(size), LONG CHARACTER
VARYING(size), TEXT(size) or STRING(size) - A string of variable length. The size constraint of these
string types do not have to be given and defaults to the maximum possible size of strings that the database is able to
store. The maximum size of these string types is 1 billion characters.
CLOB - A string of variable length without a size constraint. The maximum size of a CLOB object is 1 billion
characters.
TINYINT - An 8-bit signed integer value. The range of TINYINT is -128 to 127.
SMALLINT - A 16-bit signed integer value. The range of SMALLINT is -32768 to 32767.
INTEGER or INT - A 32-bit signed integer value. The range of INTEGER is -2147483648 to 2147483647.
BIGINT - A 64-bit signed integer value. The range of BIGINT is -9223372036854775808 to
9223372036854775807.
FLOAT or DOUBLE - A 64-bit precision floating point value. These types are analogous to the Java double type.
REAL, NUMERIC or DECIMAL - A higher precision numeric value. These numeric types are represented
by java.math.BigDecimal and therefore can represent numeric values of any precision and scale.
DATE - A day/month/year value. The DATE type does not have any near time bounding issues and is able to
represent dates many millennia in the future and the past. The TIMESTAMP type is internally represented
by java.util.Date.
TIME - A time of day value.
TIMESTAMP - A day/month/year and time of day value. The TIMESTAMP type does not have any near time
bounding issues and is able to represent dates many millennia in the future and the past. The TIMESTAMP type is
internally represented by java.util.Date.
BINARY(size), VARBINARY(size) or LONGVARBINARY(size) - A variable sized binary object. The size
constraint is optional and defaults to the maximum size. The maximum size of a binary object is 2 billion bytes.
BLOB - A variable sized binary object with no size constraint. The maximum size of a binary object is 2 billion
bytes.
JAVA_OBJECT - A Java object. A Java object must implement the java.io.Serializable interface and
abide by the rules of serializable objects in Java.

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