Package liquibase.database.core

Class OracleDatabase

java.lang.Object

liquibase.database.AbstractJdbcDatabase

liquibase.database.core.OracleDatabase

All Implemented Interfaces:

AutoCloseable, Database, PrioritizedService

public class OracleDatabase
extends AbstractJdbcDatabase

Encapsulates Oracle database support.

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	LONG_IDENTIFIERS_LEGNTH
static final int	ORACLE_12C_MAJOR_VERSION
static final int	ORACLE_23C_MAJOR_VERSION
static final String	PRODUCT_NAME
static final Pattern	PROXY_USER_PATTERN
protected final int	SHORT_IDENTIFIERS_LENGTH

Fields inherited from class liquibase.database.AbstractJdbcDatabase

caseSensitive, currentDateTimeFunction, dateFunctions, defaultAutoIncrementBy, defaultAutoIncrementStartWith, defaultCatalogName, defaultSchemaName, quotingStrategy, sequenceCurrentValueFunction, sequenceNextValueFunction, unmodifiableDataTypes, unquotedObjectsAreUppercased

Fields inherited from interface liquibase.database.Database

COMPLETE_SQL_SCOPE_KEY

Fields inherited from interface liquibase.servicelocator.PrioritizedService

COMPARATOR, PRIORITY_DATABASE, PRIORITY_DEFAULT

Constructor Summary

Constructors

Constructor	Description
OracleDatabase()	Default constructor for an object that represents the Oracle Database DBMS.

Method Summary

Modifier and Type	Method	Description
boolean	canAccessDbaRecycleBin()
String	correctObjectName(String objectName, Class<? extends DatabaseObject> objectType)	Fix the object name to the format the database expects, handling changes in case, etc.
String	generateDatabaseFunctionValue(DatabaseFunction databaseFunction)	Some function names are placeholders that need to be replaced with the specific database value.
String	generatePrimaryKeyName(String tableName)
protected String	getAutoIncrementClause(String generationType, Boolean defaultOnNull)	Default implementation.
protected String	getConnectionCatalogName()
int	getDatabaseMajorVersion()
int	getDatabaseMinorVersion()
int	getDataTypeMaxParameters(String dataTypeName)
String	getDateLiteral(String isoDate)	Returns an Oracle date literal with the same value as a string formatted using ISO 8601.
String	getDbaRecycleBinWarning()
String	getDefaultCatalogName()
protected String	getDefaultDatabaseProductName()
String	getDefaultDriver(String url)	If this database understands the given url, return the default driver class name.
Integer	getDefaultPort()
int	getIdentifierMaximumLength()	Returns the maximum number of bytes (NOT: characters) for an identifier.
String	getJdbcCatalogName(CatalogAndSchema schema)
String	getJdbcSchemaName(CatalogAndSchema schema)
int	getPriority()
String	getShortName()	Returns an all-lower-case short name of the product.
String	getSystemTableWhereClause(String tableNameColumn)
Set<String>	getUserDefinedTypes()
boolean	isCorrectDatabaseImplementation(DatabaseConnection conn)	Is this AbstractDatabase subclass the correct one to use for the given connection.
boolean	isReservedWord(String objectName)
boolean	isSystemObject(DatabaseObject example)
boolean	isValidOracleIdentifier(String identifier, Class<? extends DatabaseObject> type)	Tests if the given String would be a valid identifier in Oracle DBMS.
boolean	jdbcCallsCatalogsSchemas()
void	setConnection(DatabaseConnection conn)
boolean	supports(Class<? extends DatabaseObject> object)	Whether this database supports the specified object type.
boolean	supportsAutoIncrement()
boolean	supportsDatabaseChangeLogHistory()	Does the particular database implementation support the database changelog history feature and associated table?
boolean	supportsInitiallyDeferrableColumns()	Returns whether this database support initially deferrable columns.
boolean	supportsNotNullConstraintNames()	Does this database treat NOT NULL as an own kind of CONSTRAINT (in addition of simply being a column property)?
boolean	supportsRestrictForeignKeys()
boolean	supportsSchemas()	Oracle supports catalogs in liquibase terms
boolean	supportsSequences()	Does the database type support sequence.
boolean	supportsTablespaces()
ValidationErrors	validate()

Methods inherited from class liquibase.database.AbstractJdbcDatabase

addReservedWords, canCreateChangeLogTable, close, commit, correctSchema, correctSchema, createsIndexesForForeignKeys, dataTypeIsNotModifiable, disableForeignKeyChecks, doesTagExist, dropDatabaseObjects, enableForeignKeyChecks, equals, escapeColumnName, escapeColumnName, escapeColumnNameList, escapeConstraintName, escapeDataTypeName, escapeIndexName, escapeObjectName, escapeObjectName, escapeSequenceName, escapeStringForDatabase, escapeTableName, escapeViewName, execute, executeRollbackStatements, executeRollbackStatements, executeStatements, filterRollbackVisitors, generateAutoIncrementBy, generateAutoIncrementStartWith, get, getAutoCommitMode, getAutoIncrementByClause, getAutoIncrementClause, getAutoIncrementClause, getAutoIncrementClosing, getAutoIncrementOpening, getAutoIncrementStartWithClause, getConcatSql, getConnection, getConnectionSchemaName, getConnectionSchemaNameCallStatement, getContainingObjects, getCurrentDateTimeFunction, getDatabaseChangeLogLockTableName, getDatabaseChangeLogTableName, getDatabaseProductName, getDatabaseProductVersion, getDateFunctions, getDateLiteral, getDateLiteral, getDateTimeLiteral, getDefaultFractionalDigitsForTimestamp, getDefaultScaleForNativeDataType, getDefaultSchema, getDefaultSchemaName, getFetchSize, getJdbcCatalogName, getJdbcSchemaName, getLineComment, getLiquibaseCatalogName, getLiquibaseSchemaName, getLiquibaseTablespaceName, getMaxFractionalDigitsForTimestamp, getName, getObjectQuotingStrategy, getOutputDefaultCatalog, getOutputDefaultSchema, getQuotingEndCharacter, getQuotingEndReplacement, getQuotingStartCharacter, getRanChangeSet, getRanChangeSetList, getRanDate, getRawDatabaseChangeLogLockTableName, getRawDatabaseChangeLogTableName, getRunStatus, getSchemaAndCatalogCase, getSchemaFromJdbcInfo, getSystemSchema, getSystemTables, getSystemViews, getTimeLiteral, getViewDefinition, hashCode, isAutoCommit, isCaseSensitive, isCatalogOrSchemaType, isCurrentTimeFunction, isDateOnly, isDateTime, isDefaultCatalog, isDefaultSchema, isFunction, isLiquibaseObject, isSafeToRunUpdate, isSystemView, isTimeOnly, isTimestamp, markChangeSetExecStatus, mustQuoteObjectName, parseDate, quoteObject, removeRanStatus, requiresExplicitNullForColumns, requiresPassword, requiresUsername, resetInternalState, rollback, saveRollbackStatement, saveStatements, set, setAutoCommit, setCanCacheLiquibaseTableInfo, setCaseSensitive, setCurrentDateTimeFunction, setDatabaseChangeLogLockTableName, setDatabaseChangeLogTableName, setDefaultCatalogName, setDefaultSchemaName, setLiquibaseCatalogName, setLiquibaseSchemaName, setLiquibaseTablespaceName, setObjectQuotingStrategy, setOutputDefaultCatalog, setOutputDefaultSchema, setPreviousAutoCommit, startsWithNumeric, supportsBatchUpdates, supportsCatalogInObjectName, supportsCatalogs, supportsDDLInTransaction, supportsDropTableCascadeConstraints, supportsForeignKeyDisable, supportsPrimaryKeyNames, tag, toString, unescapeDataTypeName, unescapeDataTypeString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface liquibase.database.Database

addCompleteSqlToScope, afterUpdate, checkDatabaseConnection, dropDatabaseObjects, failOnDefferable, generateConnectCommandSuccessMessage, getDisplayName, supportsCreateIfNotExists, temporarilySetObjectQuotingStrategy

Field Details

PROXY_USER_PATTERN

public static final Pattern PROXY_USER_PATTERN

PRODUCT_NAME

public static final String PRODUCT_NAME

See Also:

• Constant Field Values

SHORT_IDENTIFIERS_LENGTH

protected final int SHORT_IDENTIFIERS_LENGTH

See Also:

• Constant Field Values

LONG_IDENTIFIERS_LEGNTH

protected final int LONG_IDENTIFIERS_LEGNTH

See Also:

• Constant Field Values

ORACLE_12C_MAJOR_VERSION

public static final int ORACLE_12C_MAJOR_VERSION

See Also:

• Constant Field Values

ORACLE_23C_MAJOR_VERSION

public static final int ORACLE_23C_MAJOR_VERSION

See Also:

• Constant Field Values

Constructor Details

OracleDatabase

public OracleDatabase()

Default constructor for an object that represents the Oracle Database DBMS.

Method Details

getPriority

public int getPriority()

setConnection

public void setConnection(DatabaseConnection conn)

Specified by:

setConnection in interface Database

Overrides:

setConnection in class AbstractJdbcDatabase

getShortName

public String getShortName()

Description copied from interface: Database

Returns an all-lower-case short name of the product. Used for end-user selecting of database type such as the DBMS precondition.

getDefaultDatabaseProductName

protected String getDefaultDatabaseProductName()

Specified by:

getDefaultDatabaseProductName in class AbstractJdbcDatabase

getDatabaseMajorVersion

public int getDatabaseMajorVersion()
                            throws DatabaseException

Specified by:

getDatabaseMajorVersion in interface Database

Overrides:

getDatabaseMajorVersion in class AbstractJdbcDatabase

Throws:

DatabaseException

getDatabaseMinorVersion

public int getDatabaseMinorVersion()
                            throws DatabaseException

Specified by:

getDatabaseMinorVersion in interface Database

Overrides:

getDatabaseMinorVersion in class AbstractJdbcDatabase

Throws:

DatabaseException

getDefaultPort

public Integer getDefaultPort()

getJdbcCatalogName

public String getJdbcCatalogName(CatalogAndSchema schema)

Overrides:

getJdbcCatalogName in class AbstractJdbcDatabase

getJdbcSchemaName

public String getJdbcSchemaName(CatalogAndSchema schema)

Overrides:

getJdbcSchemaName in class AbstractJdbcDatabase

getAutoIncrementClause

protected String getAutoIncrementClause(String generationType,
 Boolean defaultOnNull)

Description copied from class: AbstractJdbcDatabase

Default implementation. Intended for override in database specific cases

Overrides:

getAutoIncrementClause in class AbstractJdbcDatabase

generatePrimaryKeyName

public String generatePrimaryKeyName(String tableName)

Specified by:

generatePrimaryKeyName in interface Database

Overrides:

generatePrimaryKeyName in class AbstractJdbcDatabase

supportsInitiallyDeferrableColumns

public boolean supportsInitiallyDeferrableColumns()

Description copied from interface: Database

Returns whether this database support initially deferrable columns.

isReservedWord

public boolean isReservedWord(String objectName)

Specified by:

isReservedWord in interface Database

Overrides:

isReservedWord in class AbstractJdbcDatabase

supportsSequences

public boolean supportsSequences()

Description copied from class: AbstractJdbcDatabase

Does the database type support sequence.

Specified by:

supportsSequences in interface Database

Overrides:

supportsSequences in class AbstractJdbcDatabase

supports

public boolean supports(Class<? extends DatabaseObject> object)

Description copied from interface: Database

Whether this database supports the specified object type. It is invoking the deprecated methods to ensure that extensions are not broken, but once those are removed it will return only true

Parameters:

object - the object type to check

Returns:

true if the database supports the object type, false otherwise

supportsSchemas

public boolean supportsSchemas()

Oracle supports catalogs in liquibase terms

Specified by:

supportsSchemas in interface Database

Overrides:

supportsSchemas in class AbstractJdbcDatabase

Returns:

false

getConnectionCatalogName

protected String getConnectionCatalogName()
                                   throws DatabaseException

Overrides:

getConnectionCatalogName in class AbstractJdbcDatabase

Throws:

DatabaseException

isCorrectDatabaseImplementation

public boolean isCorrectDatabaseImplementation(DatabaseConnection conn)
                                        throws DatabaseException

Description copied from interface: Database

Is this AbstractDatabase subclass the correct one to use for the given connection.

Throws:

DatabaseException

getDefaultDriver

public String getDefaultDriver(String url)

Description copied from interface: Database

If this database understands the given url, return the default driver class name. Otherwise return null.

getDefaultCatalogName

public String getDefaultCatalogName()

Specified by:

getDefaultCatalogName in interface Database

Overrides:

getDefaultCatalogName in class AbstractJdbcDatabase

getDateLiteral

public String getDateLiteral(String isoDate)

Returns an Oracle date literal with the same value as a string formatted using ISO 8601.

Convert an ISO8601 date string to one of the following results: to_date('1995-05-23', 'YYYY-MM-DD') to_date('1995-05-23 09:23:59', 'YYYY-MM-DD HH24:MI:SS')

Implementation restriction:
Currently, only the following subsets of ISO8601 are supported:

• YYYY-MM-DD
• YYYY-MM-DDThh:mm:ss

Specified by:

getDateLiteral in interface Database

Overrides:

getDateLiteral in class AbstractJdbcDatabase

isSystemObject

public boolean isSystemObject(DatabaseObject example)

Specified by:

isSystemObject in interface Database

Overrides:

isSystemObject in class AbstractJdbcDatabase

supportsTablespaces

public boolean supportsTablespaces()

supportsAutoIncrement

public boolean supportsAutoIncrement()

Specified by:

supportsAutoIncrement in interface Database

Overrides:

supportsAutoIncrement in class AbstractJdbcDatabase

supportsRestrictForeignKeys

public boolean supportsRestrictForeignKeys()

Specified by:

supportsRestrictForeignKeys in interface Database

Overrides:

supportsRestrictForeignKeys in class AbstractJdbcDatabase

getDataTypeMaxParameters

public int getDataTypeMaxParameters(String dataTypeName)

Specified by:

getDataTypeMaxParameters in interface Database

Overrides:

getDataTypeMaxParameters in class AbstractJdbcDatabase

getSystemTableWhereClause

public String getSystemTableWhereClause(String tableNameColumn)

jdbcCallsCatalogsSchemas

public boolean jdbcCallsCatalogsSchemas()

Overrides:

jdbcCallsCatalogsSchemas in class AbstractJdbcDatabase

getUserDefinedTypes

public Set<String> getUserDefinedTypes()

generateDatabaseFunctionValue

public String generateDatabaseFunctionValue(DatabaseFunction databaseFunction)

Description copied from interface: Database

Some function names are placeholders that need to be replaced with the specific database value. e.g. nextSequenceValue(sequenceName) should be replaced with NEXT_VAL('sequenceName') for Postgresql

Specified by:

generateDatabaseFunctionValue in interface Database

Overrides:

generateDatabaseFunctionValue in class AbstractJdbcDatabase

Parameters:

databaseFunction - database function to check.

Returns:

the string value to use for an update or generate

validate

public ValidationErrors validate()

Specified by:

validate in interface Database

Overrides:

validate in class AbstractJdbcDatabase

getDbaRecycleBinWarning

public String getDbaRecycleBinWarning()

canAccessDbaRecycleBin

public boolean canAccessDbaRecycleBin()

supportsNotNullConstraintNames

public boolean supportsNotNullConstraintNames()

Description copied from interface: Database

Does this database treat NOT NULL as an own kind of CONSTRAINT (in addition of simply being a column property)? This will affect the CONSTRAINT clause SQL generators.

Specified by:

supportsNotNullConstraintNames in interface Database

Overrides:

supportsNotNullConstraintNames in class AbstractJdbcDatabase

Returns:

true if the database supports naming NOT NULL constraints, false if not.

isValidOracleIdentifier

public boolean isValidOracleIdentifier(String identifier,
 Class<? extends DatabaseObject> type)

Tests if the given String would be a valid identifier in Oracle DBMS. In Oracle, a valid identifier has the following form (case-insensitive comparison): 1st character: A-Z 2..n characters: A-Z0-9$_# The maximum length of an identifier differs by Oracle version and object type.

getIdentifierMaximumLength

public int getIdentifierMaximumLength()

Returns the maximum number of bytes (NOT: characters) for an identifier. For Oracle <=12c Release 20, this is 30 bytes, and starting from 12cR2, up to 128 (except for tablespaces, PDB names and some other rather rare object types).

Returns:

the maximum length of an object identifier, in bytes

supportsDatabaseChangeLogHistory

public boolean supportsDatabaseChangeLogHistory()

Description copied from interface: Database

Does the particular database implementation support the database changelog history feature and associated table?

Returns:

true if supported, false otherwise

correctObjectName

public String correctObjectName(String objectName,
 Class<? extends DatabaseObject> objectType)

Description copied from interface: Database

Fix the object name to the format the database expects, handling changes in case, etc.

Specified by:

correctObjectName in interface Database

Overrides:

correctObjectName in class AbstractJdbcDatabase