| 程序包 | 说明 |
|---|---|
| org.h2.expression |
Expressions include mathematical operations, simple values, and others.
|
| 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.
|
| 限定符和类型 | 类和说明 |
|---|---|
class |
ConcatenationOperation
Character string concatenation as in
'Hello' || 'World', binary
string concatenation as in X'01' || X'AB' or an array concatenation
as in ARRAY[1, 2] || 3. |
class |
OperationN
Operation with many arguments.
|
class |
SearchedCase
A searched case.
|
| 限定符和类型 | 类和说明 |
|---|---|
class |
ArrayFunction
An array function.
|
class |
CoalesceFunction
A COALESCE, GREATEST, or LEAST function.
|
class |
ConcatFunction
A CONCAT or CONCAT_WS function.
|
class |
CryptFunction
An ENCRYPT or DECRYPT function.
|
class |
CSVWriteFunction
A CSVWRITE function.
|
class |
DataTypeSQLFunction
DATA_TYPE_SQL() function.
|
class |
DateTimeFormatFunction
A date-time format function.
|
class |
DBObjectFunction
DB_OBJECT_ID() and DB_OBJECT_SQL() functions.
|
class |
FunctionN
Function with many arguments.
|
class |
HashFunction
A HASH or ORA_HASH function.
|
class |
JsonConstructorFunction
JSON constructor function.
|
class |
RegexpFunction
A regular expression function.
|
class |
StringFunction
An string function with multiple arguments.
|
class |
SubstringFunction
A SUBSTRING function.
|
class |
ToCharFunction
Emulates Oracle's TO_CHAR function.
|
class |
TruncateValueFunction
A TRUNCATE_VALUE function.
|
class |
XMLFunction
An XML function.
|
| 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.
|
| 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.
|
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