BIT column storage per table.The maximum combined width for allBITcolumns used in a givenNDBtable is 4096. FIXED column storage.NDB Cluster 7.5 and later supports a maximum of 128 TB per fragment of data inFIXEDcolumns. (Previously, this was 16 GB.) ...
BIT column storage per table.The maximum combined width for allBITcolumns used in a givenNDBtable is 4096. FIXED column storage.NDB Cluster 8.0 supports a maximum of 128 TB per fragment of data inFIXEDcolumns. PREVHOMEUPNEXT
SQL_MAX_COLUMN_NAME_LEN 1.0 一个SQLUSMALLINT 值,该值指定数据源中列名的最大长度。 如果没有最大长度或长度未知,则此值设置为零。符合FIPS 入口级别的驱动程序将至少返回 18 个。 FIPS 中间级别一致性驱动程序将至少返回 128。 SQL_MAX_COLUMNS_IN_GROUP_BY 2.0 一个SQLUSMALLINT 值,该值指定 GROUP BY...
In a traditional Oracle database, when a user selects a row or even a single column in a row, the entire block containing that row is fetched from the disk to the buffer cache, and the selected row (or column, as the case may be) is then extracted from the block and presented to...
than to access a text file. Information in the database is likely to be stored in a more compact format than in the text file, so accessing it involves fewer disk accesses. You also save code in your application because you can avoid parsing the text file to find line and column boundar...
useFetchSizeWithLongColumnbooleanIf the value of this property is "true", then JDBC will prefetch rows even though there is a LONG or LONG RAW column in the result. By default JDBC fetches only one row at a time if there are LONG or LONG RAW columns in the result. Setting this property...
java.sql.ResultSet getColumns(java.lang.String catalog, java.lang.String schemaPattern, java.lang.String tableNamePattern, java.lang.String columnNamePattern) Get a description of table columns available in a catalog. java.sql.Connection getConnection() Implements JDBC 2.0 DatabaseMetaData.getConnec...
disable_defineColumnType_string, dll_string, execute_batch_string, fixed_string_string, include_synonyms_string, j2ee_compliance, jdbc_string, logon_as_internal_str, nls_lang_backdoor, no_caching_buffers, oracle_string, password_string, permit_timestamp_date_mismatch_string, prefetch_string, preli...
2021/11/02 09:01:36.958 ERROR [JDBCExceptionReporter] The DELETE statement conflicted with the REFERENCE constraint "XFKJawsCalendarJobCondition". The conflict occurred in database "<database name>", table "dbo.JobCondition", column 'calendarId'. ...
supportsColumnAliasing, supportsConvert, supportsConvert, supportsCoreSQLGrammar, supportsCorrelatedSubqueries, supportsDataDefinitionAndDataManipulationTransactions, supportsDataManipulationTransactionsOnly, supportsDifferentTableCorrelationNames, supportsExpressionsInOrderBy, supportsExtendedSQLGrammar, supportsFullOuterJoins...