List of usage examples for java.sql DatabaseMetaData getMaxColumnNameLength
int getMaxColumnNameLength() throws SQLException;
From source file:Main.java
public static void main(String[] args) throws Exception { Connection conn = getHSQLConnection(); DatabaseMetaData md = conn.getMetaData(); System.out.println(md.getMaxColumnNameLength()); conn.close();/*w w w . j a v a2 s . c o m*/ }
From source file:mondrian.spi.impl.JdbcDialectImpl.java
protected int deduceMaxColumnNameLength(DatabaseMetaData databaseMetaData) { try {//from ww w . ja v a2 s . c o m return databaseMetaData.getMaxColumnNameLength(); } catch (SQLException e) { throw Util.newInternal(e, "while detecting maxColumnNameLength"); } }
From source file:org.apache.bigtop.itest.hive.TestJdbc.java
/** * Test simple DatabaseMetaData calls. getColumns is tested elsewhere, as we need to call * that on a valid table. Same with getFunctions. * * @throws SQLException//from w w w . j a v a 2 s. c o m */ @Test public void databaseMetaDataCalls() throws SQLException { DatabaseMetaData md = conn.getMetaData(); boolean boolrc = md.allTablesAreSelectable(); LOG.debug("All tables are selectable? " + boolrc); String strrc = md.getCatalogSeparator(); LOG.debug("Catalog separator " + strrc); strrc = md.getCatalogTerm(); LOG.debug("Catalog term " + strrc); ResultSet rs = md.getCatalogs(); while (rs.next()) { strrc = rs.getString(1); LOG.debug("Found catalog " + strrc); } Connection c = md.getConnection(); int intrc = md.getDatabaseMajorVersion(); LOG.debug("DB major version is " + intrc); intrc = md.getDatabaseMinorVersion(); LOG.debug("DB minor version is " + intrc); strrc = md.getDatabaseProductName(); LOG.debug("DB product name is " + strrc); strrc = md.getDatabaseProductVersion(); LOG.debug("DB product version is " + strrc); intrc = md.getDefaultTransactionIsolation(); LOG.debug("Default transaction isolation is " + intrc); intrc = md.getDriverMajorVersion(); LOG.debug("Driver major version is " + intrc); intrc = md.getDriverMinorVersion(); LOG.debug("Driver minor version is " + intrc); strrc = md.getDriverName(); LOG.debug("Driver name is " + strrc); strrc = md.getDriverVersion(); LOG.debug("Driver version is " + strrc); strrc = md.getExtraNameCharacters(); LOG.debug("Extra name characters is " + strrc); strrc = md.getIdentifierQuoteString(); LOG.debug("Identifier quote string is " + strrc); // In Hive 1.2 this always returns an empty RS rs = md.getImportedKeys("a", "b", "d"); // In Hive 1.2 this always returns an empty RS rs = md.getIndexInfo("a", "b", "d", true, true); intrc = md.getJDBCMajorVersion(); LOG.debug("JDBC major version is " + intrc); intrc = md.getJDBCMinorVersion(); LOG.debug("JDBC minor version is " + intrc); intrc = md.getMaxColumnNameLength(); LOG.debug("Maximum column name length is " + intrc); strrc = md.getNumericFunctions(); LOG.debug("Numeric functions are " + strrc); // In Hive 1.2 this always returns an empty RS rs = md.getPrimaryKeys("a", "b", "d"); // In Hive 1.2 this always returns an empty RS rs = md.getProcedureColumns("a", "b", "d", "e"); strrc = md.getProcedureTerm(); LOG.debug("Procedures are called " + strrc); // In Hive 1.2 this always returns an empty RS rs = md.getProcedures("a", "b", "d"); strrc = md.getSchemaTerm(); LOG.debug("Schemas are called " + strrc); rs = md.getSchemas(); while (rs.next()) { strrc = rs.getString(1); LOG.debug("Found schema " + strrc); } strrc = md.getSearchStringEscape(); LOG.debug("Search string escape is " + strrc); strrc = md.getStringFunctions(); LOG.debug("String functions are " + strrc); strrc = md.getSystemFunctions(); LOG.debug("System functions are " + strrc); rs = md.getTableTypes(); while (rs.next()) { strrc = rs.getString(1); LOG.debug("Found table type " + strrc); } strrc = md.getTimeDateFunctions(); LOG.debug("Time/date functions are " + strrc); rs = md.getTypeInfo(); while (rs.next()) { strrc = rs.getString(1); LOG.debug("Found type " + strrc); } // In Hive 1.2 this always returns an empty RS rs = md.getUDTs("a", "b", "d", null); boolrc = md.supportsAlterTableWithAddColumn(); LOG.debug("Supports alter table with add column? " + boolrc); boolrc = md.supportsAlterTableWithDropColumn(); LOG.debug("Supports alter table with drop column? " + boolrc); boolrc = md.supportsBatchUpdates(); LOG.debug("Supports batch updates? " + boolrc); boolrc = md.supportsCatalogsInDataManipulation(); LOG.debug("Supports catalogs in data manipulation? " + boolrc); boolrc = md.supportsCatalogsInIndexDefinitions(); LOG.debug("Supports catalogs in index definition? " + boolrc); boolrc = md.supportsCatalogsInPrivilegeDefinitions(); LOG.debug("Supports catalogs in privilege definition? " + boolrc); boolrc = md.supportsCatalogsInProcedureCalls(); LOG.debug("Supports catalogs in procedure calls? " + boolrc); boolrc = md.supportsCatalogsInTableDefinitions(); LOG.debug("Supports catalogs in table definition? " + boolrc); boolrc = md.supportsColumnAliasing(); LOG.debug("Supports column aliasing? " + boolrc); boolrc = md.supportsFullOuterJoins(); LOG.debug("Supports full outer joins? " + boolrc); boolrc = md.supportsGroupBy(); LOG.debug("Supports group by? " + boolrc); boolrc = md.supportsLimitedOuterJoins(); LOG.debug("Supports limited outer joins? " + boolrc); boolrc = md.supportsMultipleResultSets(); LOG.debug("Supports limited outer joins? " + boolrc); boolrc = md.supportsNonNullableColumns(); LOG.debug("Supports non-nullable columns? " + boolrc); boolrc = md.supportsOuterJoins(); LOG.debug("Supports outer joins? " + boolrc); boolrc = md.supportsPositionedDelete(); LOG.debug("Supports positioned delete? " + boolrc); boolrc = md.supportsPositionedUpdate(); LOG.debug("Supports positioned update? " + boolrc); boolrc = md.supportsResultSetHoldability(ResultSet.HOLD_CURSORS_OVER_COMMIT); LOG.debug("Supports result set holdability? " + boolrc); boolrc = md.supportsResultSetType(ResultSet.HOLD_CURSORS_OVER_COMMIT); LOG.debug("Supports result set type? " + boolrc); boolrc = md.supportsSavepoints(); LOG.debug("Supports savepoints? " + boolrc); boolrc = md.supportsSchemasInDataManipulation(); LOG.debug("Supports schemas in data manipulation? " + boolrc); boolrc = md.supportsSchemasInIndexDefinitions(); LOG.debug("Supports schemas in index definitions? " + boolrc); boolrc = md.supportsSchemasInPrivilegeDefinitions(); LOG.debug("Supports schemas in privilege definitions? " + boolrc); boolrc = md.supportsSchemasInProcedureCalls(); LOG.debug("Supports schemas in procedure calls? " + boolrc); boolrc = md.supportsSchemasInTableDefinitions(); LOG.debug("Supports schemas in table definitions? " + boolrc); boolrc = md.supportsSelectForUpdate(); LOG.debug("Supports select for update? " + boolrc); boolrc = md.supportsStoredProcedures(); LOG.debug("Supports stored procedures? " + boolrc); boolrc = md.supportsTransactions(); LOG.debug("Supports transactions? " + boolrc); boolrc = md.supportsUnion(); LOG.debug("Supports union? " + boolrc); boolrc = md.supportsUnionAll(); LOG.debug("Supports union all? " + boolrc); }
From source file:org.apache.openjpa.jdbc.sql.DBDictionaryFactory.java
/** * Return a string containing all the property values of the given * database metadata./*from w w w . j a v a2 s . c o m*/ */ public static String toString(DatabaseMetaData meta) throws SQLException { String lineSep = J2DoPrivHelper.getLineSeparator(); StringBuilder buf = new StringBuilder(4096); try { buf.append("catalogSeparator: ").append(meta.getCatalogSeparator()).append(lineSep) .append("catalogTerm: ").append(meta.getCatalogTerm()).append(lineSep) .append("databaseProductName: ").append(meta.getDatabaseProductName()).append(lineSep) .append("databaseProductVersion: ").append(meta.getDatabaseProductVersion()).append(lineSep) .append("driverName: ").append(meta.getDriverName()).append(lineSep).append("driverVersion: ") .append(meta.getDriverVersion()).append(lineSep).append("extraNameCharacters: ") .append(meta.getExtraNameCharacters()).append(lineSep).append("identifierQuoteString: ") .append(meta.getIdentifierQuoteString()).append(lineSep).append("numericFunctions: ") .append(meta.getNumericFunctions()).append(lineSep).append("procedureTerm: ") .append(meta.getProcedureTerm()).append(lineSep).append("schemaTerm: ") .append(meta.getSchemaTerm()).append(lineSep).append("searchStringEscape: ") .append(meta.getSearchStringEscape()).append(lineSep).append("sqlKeywords: ") .append(meta.getSQLKeywords()).append(lineSep).append("stringFunctions: ") .append(meta.getStringFunctions()).append(lineSep).append("systemFunctions: ") .append(meta.getSystemFunctions()).append(lineSep).append("timeDateFunctions: ") .append(meta.getTimeDateFunctions()).append(lineSep).append("url: ").append(meta.getURL()) .append(lineSep).append("userName: ").append(meta.getUserName()).append(lineSep) .append("defaultTransactionIsolation: ").append(meta.getDefaultTransactionIsolation()) .append(lineSep).append("driverMajorVersion: ").append(meta.getDriverMajorVersion()) .append(lineSep).append("driverMinorVersion: ").append(meta.getDriverMinorVersion()) .append(lineSep).append("maxBinaryLiteralLength: ").append(meta.getMaxBinaryLiteralLength()) .append(lineSep).append("maxCatalogNameLength: ").append(meta.getMaxCatalogNameLength()) .append(lineSep).append("maxCharLiteralLength: ").append(meta.getMaxCharLiteralLength()) .append(lineSep).append("maxColumnNameLength: ").append(meta.getMaxColumnNameLength()) .append(lineSep).append("maxColumnsInGroupBy: ").append(meta.getMaxColumnsInGroupBy()) .append(lineSep).append("maxColumnsInIndex: ").append(meta.getMaxColumnsInIndex()) .append(lineSep).append("maxColumnsInOrderBy: ").append(meta.getMaxColumnsInOrderBy()) .append(lineSep).append("maxColumnsInSelect: ").append(meta.getMaxColumnsInSelect()) .append(lineSep).append("maxColumnsInTable: ").append(meta.getMaxColumnsInTable()) .append(lineSep).append("maxConnections: ").append(meta.getMaxConnections()).append(lineSep) .append("maxCursorNameLength: ").append(meta.getMaxCursorNameLength()).append(lineSep) .append("maxIndexLength: ").append(meta.getMaxIndexLength()).append(lineSep) .append("maxProcedureNameLength: ").append(meta.getMaxProcedureNameLength()).append(lineSep) .append("maxRowSize: ").append(meta.getMaxRowSize()).append(lineSep) .append("maxSchemaNameLength: ").append(meta.getMaxSchemaNameLength()).append(lineSep) .append("maxStatementLength: ").append(meta.getMaxStatementLength()).append(lineSep) .append("maxStatements: ").append(meta.getMaxStatements()).append(lineSep) .append("maxTableNameLength: ").append(meta.getMaxTableNameLength()).append(lineSep) .append("maxTablesInSelect: ").append(meta.getMaxTablesInSelect()).append(lineSep) .append("maxUserNameLength: ").append(meta.getMaxUserNameLength()).append(lineSep) .append("isCatalogAtStart: ").append(meta.isCatalogAtStart()).append(lineSep) .append("isReadOnly: ").append(meta.isReadOnly()).append(lineSep) .append("nullPlusNonNullIsNull: ").append(meta.nullPlusNonNullIsNull()).append(lineSep) .append("nullsAreSortedAtEnd: ").append(meta.nullsAreSortedAtEnd()).append(lineSep) .append("nullsAreSortedAtStart: ").append(meta.nullsAreSortedAtStart()).append(lineSep) .append("nullsAreSortedHigh: ").append(meta.nullsAreSortedHigh()).append(lineSep) .append("nullsAreSortedLow: ").append(meta.nullsAreSortedLow()).append(lineSep) .append("storesLowerCaseIdentifiers: ").append(meta.storesLowerCaseIdentifiers()) .append(lineSep).append("storesLowerCaseQuotedIdentifiers: ") .append(meta.storesLowerCaseQuotedIdentifiers()).append(lineSep) .append("storesMixedCaseIdentifiers: ").append(meta.storesMixedCaseIdentifiers()) .append(lineSep).append("storesMixedCaseQuotedIdentifiers: ") .append(meta.storesMixedCaseQuotedIdentifiers()).append(lineSep) .append("storesUpperCaseIdentifiers: ").append(meta.storesUpperCaseIdentifiers()) .append(lineSep).append("storesUpperCaseQuotedIdentifiers: ") .append(meta.storesUpperCaseQuotedIdentifiers()).append(lineSep) .append("supportsAlterTableWithAddColumn: ").append(meta.supportsAlterTableWithAddColumn()) .append(lineSep).append("supportsAlterTableWithDropColumn: ") .append(meta.supportsAlterTableWithDropColumn()).append(lineSep) .append("supportsANSI92EntryLevelSQL: ").append(meta.supportsANSI92EntryLevelSQL()) .append(lineSep).append("supportsANSI92FullSQL: ").append(meta.supportsANSI92FullSQL()) .append(lineSep).append("supportsANSI92IntermediateSQL: ") .append(meta.supportsANSI92IntermediateSQL()).append(lineSep) .append("supportsCatalogsInDataManipulation: ") .append(meta.supportsCatalogsInDataManipulation()).append(lineSep) .append("supportsCatalogsInIndexDefinitions: ") .append(meta.supportsCatalogsInIndexDefinitions()).append(lineSep) .append("supportsCatalogsInPrivilegeDefinitions: ") .append(meta.supportsCatalogsInPrivilegeDefinitions()).append(lineSep) .append("supportsCatalogsInProcedureCalls: ").append(meta.supportsCatalogsInProcedureCalls()) .append(lineSep).append("supportsCatalogsInTableDefinitions: ") .append(meta.supportsCatalogsInTableDefinitions()).append(lineSep) .append("supportsColumnAliasing: ").append(meta.supportsColumnAliasing()).append(lineSep) .append("supportsConvert: ").append(meta.supportsConvert()).append(lineSep) .append("supportsCoreSQLGrammar: ").append(meta.supportsCoreSQLGrammar()).append(lineSep) .append("supportsCorrelatedSubqueries: ").append(meta.supportsCorrelatedSubqueries()) .append(lineSep).append("supportsDataDefinitionAndDataManipulationTransactions: ") .append(meta.supportsDataDefinitionAndDataManipulationTransactions()).append(lineSep) .append("supportsDataManipulationTransactionsOnly: ") .append(meta.supportsDataManipulationTransactionsOnly()).append(lineSep) .append("supportsDifferentTableCorrelationNames: ") .append(meta.supportsDifferentTableCorrelationNames()).append(lineSep) .append("supportsExpressionsInOrderBy: ").append(meta.supportsExpressionsInOrderBy()) .append(lineSep).append("supportsExtendedSQLGrammar: ") .append(meta.supportsExtendedSQLGrammar()).append(lineSep).append("supportsFullOuterJoins: ") .append(meta.supportsFullOuterJoins()).append(lineSep).append("supportsGroupBy: ") .append(meta.supportsGroupBy()).append(lineSep).append("supportsGroupByBeyondSelect: ") .append(meta.supportsGroupByBeyondSelect()).append(lineSep).append("supportsGroupByUnrelated: ") .append(meta.supportsGroupByUnrelated()).append(lineSep) .append("supportsIntegrityEnhancementFacility: ") .append(meta.supportsIntegrityEnhancementFacility()).append(lineSep) .append("supportsLikeEscapeClause: ").append(meta.supportsLikeEscapeClause()).append(lineSep) .append("supportsLimitedOuterJoins: ").append(meta.supportsLimitedOuterJoins()).append(lineSep) .append("supportsMinimumSQLGrammar: ").append(meta.supportsMinimumSQLGrammar()).append(lineSep) .append("supportsMixedCaseIdentifiers: ").append(meta.supportsMixedCaseIdentifiers()) .append(lineSep).append("supportsMixedCaseQuotedIdentifiers: ") .append(meta.supportsMixedCaseQuotedIdentifiers()).append(lineSep) .append("supportsMultipleResultSets: ").append(meta.supportsMultipleResultSets()) .append(lineSep).append("supportsMultipleTransactions: ") .append(meta.supportsMultipleTransactions()).append(lineSep) .append("supportsNonNullableColumns: ").append(meta.supportsNonNullableColumns()) .append(lineSep).append("supportsOpenCursorsAcrossCommit: ") .append(meta.supportsOpenCursorsAcrossCommit()).append(lineSep) .append("supportsOpenCursorsAcrossRollback: ").append(meta.supportsOpenCursorsAcrossRollback()) .append(lineSep).append("supportsOpenStatementsAcrossCommit: ") .append(meta.supportsOpenStatementsAcrossCommit()).append(lineSep) .append("supportsOpenStatementsAcrossRollback: ") .append(meta.supportsOpenStatementsAcrossRollback()).append(lineSep) .append("supportsOrderByUnrelated: ").append(meta.supportsOrderByUnrelated()).append(lineSep) .append("supportsOuterJoins: ").append(meta.supportsOuterJoins()).append(lineSep) .append("supportsPositionedDelete: ").append(meta.supportsPositionedDelete()).append(lineSep) .append("supportsPositionedUpdate: ").append(meta.supportsPositionedUpdate()).append(lineSep) .append("supportsSchemasInDataManipulation: ").append(meta.supportsSchemasInDataManipulation()) .append(lineSep).append("supportsSchemasInIndexDefinitions: ") .append(meta.supportsSchemasInIndexDefinitions()).append(lineSep) .append("supportsSchemasInPrivilegeDefinitions: ") .append(meta.supportsSchemasInPrivilegeDefinitions()).append(lineSep) .append("supportsSchemasInProcedureCalls: ").append(meta.supportsSchemasInProcedureCalls()) .append(lineSep).append("supportsSchemasInTableDefinitions: ") .append(meta.supportsSchemasInTableDefinitions()).append(lineSep) .append("supportsSelectForUpdate: ").append(meta.supportsSelectForUpdate()).append(lineSep) .append("supportsStoredProcedures: ").append(meta.supportsStoredProcedures()).append(lineSep) .append("supportsSubqueriesInComparisons: ").append(meta.supportsSubqueriesInComparisons()) .append(lineSep).append("supportsSubqueriesInExists: ") .append(meta.supportsSubqueriesInExists()).append(lineSep).append("supportsSubqueriesInIns: ") .append(meta.supportsSubqueriesInIns()).append(lineSep) .append("supportsSubqueriesInQuantifieds: ").append(meta.supportsSubqueriesInQuantifieds()) .append(lineSep).append("supportsTableCorrelationNames: ") .append(meta.supportsTableCorrelationNames()).append(lineSep).append("supportsTransactions: ") .append(meta.supportsTransactions()).append(lineSep).append("supportsUnion: ") .append(meta.supportsUnion()).append(lineSep).append("supportsUnionAll: ") .append(meta.supportsUnionAll()).append(lineSep).append("usesLocalFilePerTable: ") .append(meta.usesLocalFilePerTable()).append(lineSep).append("usesLocalFiles: ") .append(meta.usesLocalFiles()).append(lineSep).append("allProceduresAreCallable: ") .append(meta.allProceduresAreCallable()).append(lineSep).append("allTablesAreSelectable: ") .append(meta.allTablesAreSelectable()).append(lineSep) .append("dataDefinitionCausesTransactionCommit: ") .append(meta.dataDefinitionCausesTransactionCommit()).append(lineSep) .append("dataDefinitionIgnoredInTransactions: ") .append(meta.dataDefinitionIgnoredInTransactions()).append(lineSep) .append("doesMaxRowSizeIncludeBlobs: ").append(meta.doesMaxRowSizeIncludeBlobs()) .append(lineSep).append("supportsBatchUpdates: ").append(meta.supportsBatchUpdates()); } catch (Throwable t) { // maybe abstract method error for jdbc 3 metadata method, or // other error buf.append(lineSep).append("Caught throwable: ").append(t); } return buf.toString(); }