接口的使用
org.h2.expression.function.NamedExpression

使用NamedExpression的程序包

程序包	说明
org.h2.expression.function	Functions.
org.h2.expression.function.table	Table value functions.
org.h2.mode	Utility classes for compatibility with other database, for example MySQL.

org.h2.expression.function中NamedExpression的使用

实现NamedExpression的org.h2.expression.function中的类

限定符和类型	类和说明
class	ArrayFunction An array function.
class	BitFunction A bitwise function.
class	CardinalityExpression Cardinality expression.
class	CastSpecification A cast specification.
class	CoalesceFunction A COALESCE, GREATEST, or LEAST function.
class	CompatibilitySequenceValueFunction NEXTVAL() and CURRVAL() compatibility functions.
class	CompressFunction A COMPRESS or EXPAND function.
class	ConcatFunction A CONCAT or CONCAT_WS function.
class	CryptFunction An ENCRYPT or DECRYPT function.
class	CSVWriteFunction A CSVWRITE function.
class	CurrentDateTimeValueFunction Current datetime value function.
class	CurrentGeneralValueSpecification Simple general value specifications.
class	DataTypeSQLFunction DATA_TYPE_SQL() function.
class	DateTimeFormatFunction A date-time format function.
class	DateTimeFunction A date-time function.
class	DayMonthNameFunction A DAYNAME() or MONTHNAME() function.
class	DBObjectFunction DB_OBJECT_ID() and DB_OBJECT_SQL() functions.
class	FileFunction A FILE_READ or FILE_WRITE function.
class	Function0_1 Function with one optional argument.
class	Function1 Function with one argument.
class	Function1_2 Function with two arguments.
class	Function2 Function with two arguments.
class	FunctionN Function with many arguments.
class	HashFunction A HASH or ORA_HASH function.
class	JavaFunction This class wraps a user-defined function.
class	JsonConstructorFunction JSON constructor function.
class	LengthFunction CHAR_LENGTH(), or OCTET_LENGTH() function.
class	MathFunction A math function.
class	MathFunction1 A math function with one argument and DOUBLE PRECISION result.
class	MathFunction2 A math function with two arguments and DOUBLE PRECISION result.
class	NullIfFunction A NULLIF function.
class	RandFunction A RAND, SECURE_RAND, or RANDOM_UUID function.
class	RegexpFunction A regular expression function.
class	SessionControlFunction An ABORT_SESSION() or CANCEL_SESSION() function.
class	SetFunction A SET function.
class	SignalFunction A SIGNAL function.
class	SoundexFunction A SOUNDEX or DIFFERENCE function.
class	StringFunction An string function with multiple arguments.
class	StringFunction1 A string function with one argument.
class	StringFunction2 A string function with two arguments.
class	SubstringFunction A SUBSTRING function.
class	SysInfoFunction Database or session information function.
class	TableInfoFunction A table information function.
class	ToCharFunction Emulates Oracle's TO_CHAR function.
class	TrimFunction A TRIM function.
class	TruncateValueFunction A TRUNCATE_VALUE function.
class	XMLFunction An XML function.

org.h2.expression.function.table中NamedExpression的使用

实现NamedExpression的org.h2.expression.function.table中的类

限定符和类型	类和说明
class	ArrayTableFunction A table value function.
class	CSVReadFunction A CSVREAD function.
class	JavaTableFunction This class wraps a user-defined function.
class	LinkSchemaFunction A LINK_SCHEMA function.
class	TableFunction A table value function.

org.h2.mode中NamedExpression的使用

实现NamedExpression的org.h2.mode中的类

限定符和类型	类和说明
class	FunctionsDB2Derby Functions for Mode.ModeEnum.DB2 and Mode.ModeEnum.Derby compatibility modes.
class	FunctionsLegacy This class implements some legacy functions not available in Regular mode.
class	FunctionsMSSQLServer Functions for Mode.ModeEnum.MSSQLServer compatibility mode.
class	FunctionsMySQL This class implements some MySQL-specific functions.
class	FunctionsOracle Functions for Mode.ModeEnum.Oracle compatibility mode.
class	FunctionsPostgreSQL Functions for Mode.ModeEnum.PostgreSQL compatibility mode.
class	ModeFunction Base class for mode-specific functions.