# means the log is written to the log file at each commit, but the log # file is only flushed to disk approximately once per second. innodb_flush_log_at_trx_commit=1 # The size of the buffer InnoDB uses for buffering log data. As soon as # it is full, InnoDB will have to flush...
}/*Create elora table in the database*/strncpy(sql,"CREATE TABLE elora(id INTEGER PRIMARY KEY autoincrement, sent BOOL DEFAULT 0, packet BLOB);",sizeof(sql));if( SQLITE_OK != sqlite3_exec(s_report_db, sql, NULL, NULL, &errmsg) ) { log_err("create elora table in report database...
If aTEXTcolumn is indexed, index entry comparisons are space-padded at the end. This means that, if the index requires unique values, duplicate-key errors will occur for values that differ only in the number of trailing spaces. For example, if a table contains'a', an attempt to store'a ...
pressiveforce.At}astthispapergivessomewaysandmeansoftheresearch Keywords"cartographictechniqueaesthetics;theopticalvariableoftexture;shadoweffect:colorrefactor 责任编辑安敏 (上接第297页) AccessBinaryMapDatawithBLOB CHENMing一,YOUXiong (1?Instit"te0fSurveyigandMappig,InformatioHEgineerigUniver5ityZhengzh0"450...
This means that in the case of REDUNDANT and COMPACT row formats, if the field data length is less than or equal to 768 bytes (DICT_ANTELOPE_MAX_INDEX_COL_LEN), then it will not be chosen for external storage. This rule is not applicable for DYNAMIC and COMPRESSED row formats, because...
1.4 See Also: getBinaryStream() truncate voidtruncate(long len)throwsSQLException Truncates theBLOBvalue that thisBlobobject represents to belenbytes in length. Note:If the value specified forposis greater than the length+1 of theBLOBvalue then the behavior is undefined. Some JDBC drivers may thro...
For BLOB and CLOB data types only LOB locators (pointers to data) are stored in table columns; actual BLOB and CLOB data is stored in separate tablespace. This is the difference to the way that data of LONG or LONG RAW types is stored in database – tables hold their immediate values....
Impala does not allow binary data. What you can do is use a serialize-deserialize methodology. This means you convert your image to a String format that still contains all the information necessary to transform it back. Once you need to retrieve an image on HDFS you will need to deseriali...
EMPTY_BLOB and EMPTY_CLOB return an empty LOB locator that can be used to initialize a LOB variable or, in an INSERT or UPDATE statement, to initialize a LOB column or attribute to EMPTY. EMPTY means that the LOB is initialized, but not populated with data. Note: An empty LOB is not...
Returns the data type of the blob. Product Availability Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Specified by: getDataType in interface ITerrainBlobReader Returns: A com.esri.arcgis.geodatabaseextensions.esriTerrainBlobDataType constant Throws: IOException - If there ...