Java read Level-1 quotes dbf File optimization (3), level-1dbf
Recently, a project was constructed to achieve market access and distribution, which requires extreme low latency. This is very important for the securities system. The access line source can be configured, either Level-1 or Level-2 or another third-party source. Although the Level-1 market is not as fast as Level-2, we still need to optimize it
Solution after the dbf File of Oracle is deleted by mistake: www.2cto.com deletes the dbf file of the Oracle database by mistake. An error is prompted when the database is started or shut down. Startup prompts when starting the database: ORA-01157: unable to identify/lock the data
The database uses Mysql5.1. in the system, you need to read the database and export the records into a table in dbf format. However, a field value in the database does not contain spaces, however, the exported values in the same field in the dbf file contain spaces. What are the reasons and how to change them, by the way, how can I send a local image? [here] [1]
First install a driver vfpodbc. MSI, search for one on the internet, download and install
ReadCodeAs follows:
// Data source connection string var connstr = @ "driver = {Microsoft Visual FoxPro driver}; sourcetype = DBF; sourcedb =" + full path of DBF File + "; exclusive = no; null = no; collate = machine; backgroundfetch = no; deleted = No "; using (VAR olec
PHP DBF CDX
PHP Read folder under DBF file, if the same name as the CDX file exists, read no problem,
However, if only the independent DBF file, read through PHP, the error is as follows:
$add = ' C://batman//daten//ladertyp.
Office upgrade to 2007, but found that Excel 2007 can not edit dbf file, what is going on? DBF file is a FoxPro dbf table file, in Excel 2003 can be opened arbitrarily and the DBF to ed
Undotbs01.dbf file too large solution
Reduce the size of the UNDOTBS01.DBF file in the Oracle directory
Log on to Oracle using the sys userMethod 1: reset the tablespace size
Run
Alter database datafile '/opt/oracle/oradata/res/undotbs01.dbf' RESIZE 100 M;
In Windows, execut
SQL statement used by PHP to link the DBF file php odbc dbf
Ask the gods ..
After the odbc driver is installed, the link to the DBF file is OK ..
When using SQL statements, why can only use the most basic SQL syntax, such as SELECT... ORDER... like or GETDATE? Otherwise, t
Oracle11 tablespace dbf File migration, oracle11dbf
When the disk space of the oracle data file is insufficient or the dbf file needs to be migrated to another location in other cases, the procedure is as follows:
1. sqlplus sys/sys as sysdba
2. shutdown immediate
3. cop
First, the question of the proposedThe most recent project encountered ASP pairs of FoxPro library tables (*. DBF) operation problem. In reality, many applications use DBF tables, how to use these data in the network environment, so many friends are helpless.I also checked a lot of information, did not find a detailed explanation for the solution. After the test, the preliminary solution to this problem, ta
Help: Dbase_open open dbf file, only 2 lines of code ~
Note: Extension=php_dbase.dll is turned on by default
The code is as follows:
PHP Code
An error message appears:
Warning:dbase_open () [Function.dbase-open]: Unable to open database test.dbf in F:\web\AppServ\www\test\dbf.php on line 3
I tried many paths with the same warning: (Path is correct)
$
Oracle 11 tablespace dbf File migration
When the disk space of the oracle data file is insufficient or the dbf file needs to be migrated to another location in other cases, the procedure is as follows:
1. sqlplus sys/sys as sysdba
2. shutdown immediate
3. copy the
Oracle 11g tablespace dbf File migration
When the disk space of the Oracle data file is insufficient or the dbf file needs to be migrated to another location in other cases, the procedure is as follows:
1. sqlplus sys/sys as sysdba
2. shutdown immediate
3. copy the
When the disk space for Oracle's data files is not sufficient or otherwise requires that the DBF file be migrated to a different location, here are the steps:1, Sqlplus Sys/sys as Sysdba2, Shutdown immediate3. Copy dbf file to a new location4, startup Mount;5, ALTER DATABASE rename
Files with a file extension of DBF:The. dbf file is the database format used by dBASE and FoxPro, and you can use Excel to open the file without both software. In the Excel Open File dialog box, select the file type "dBase (*.
One-time temporary Method for connecting to and accessing remote data using ole db: read data from a file and return the data as a row set
You can use OpenRowSet to access remote data in the ole db data source only in the following situations: the disallowadhocaccess registry option of the specified access interface has been explicitly set to 0, the advanced configuration options of ad hoc distributed queries are enabled. If these options are not set
How to log on to Oracle's Sql*plus with SYS users:SysOracleORCL as Sysdba
Oracle's UNDOTBS01.DBF file is too big a solution:
--Create a new small space for the undo TablespaceCREATE UNDO tablespace UNDOTBS2 datafile ' D:/oracle/oradata/orcl/undotbs02. DBF ' SIZE 100M reuse autoextend on;--Set the new table space for the system Undo_tablespaceALTER SYSTEM SET UN
Tags: ora-01110 cause Unable to shutdown ONS tar hint init minError due to moving or deleting DBF file:ora-01033:oracle initialization or shutdown in progressCause: Generally, this type of failure is usually caused by moving files that affect the inability of an IO operation due to corruption of the database log file. Oracle will recognize that the database has not been loaded and is causing the error to oc
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