Difference between revisions of "fcl-db"
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(Clarity; added mssqlconn driver) |
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== Known issues/shortcomings == | == Known issues/shortcomings == | ||
− | * | + | * Master - detail relations are not complete |
− | * | + | * Calculated field support is not complete |
− | + | * No binary data transfer using parameters (everything is converted to ASCII) in most drivers. | |
− | * No binary data transfer using parameters (everything is converted to | ||
* There are some floating point issues, with precision and scale parameters only minimally supported in some drivers (amongst others mysql) | * There are some floating point issues, with precision and scale parameters only minimally supported in some drivers (amongst others mysql) | ||
− | * | + | * Most character encoding issues are solved fairly ad hoc. There is no way to set the fundamental encodings manually: |
*# the encoding of the connection | *# the encoding of the connection | ||
*# the encoding of the components internal storage | *# the encoding of the components internal storage | ||
Line 14: | Line 13: | ||
*# (optionally, encoding of exports, or fileformats) | *# (optionally, encoding of exports, or fileformats) | ||
* Many driver dependent issues in datetime types and timezone support. | * Many driver dependent issues in datetime types and timezone support. | ||
− | * | + | * Between the drivers, Firebird is used the most, then Mysql, SQLite, PostgreSQL and ODBC. Finally comes Oracle which is mostly still at a proof of concept level. The Microsoft SQL Server and Sybase ASE drivers are a recent addition to FPC (2.6.1 and higher) and Lazarus. |
+ | * Before FPC 2.6: no stored procedure resultset >1 row | ||
Most of these are being worked on, and the status changes on a monthly basis, so be sure to do your own testing and source inspection, since this will be most certainly out of date. | Most of these are being worked on, and the status changes on a monthly basis, so be sure to do your own testing and source inspection, since this will be most certainly out of date. | ||
− | A testsuite is | + | A testsuite exists and is being expanded which hopefully will accelerate accepting patches (and make it easier for contributors to create quality patches), and get rid of some of the 120 database related bugreports. |
== Units == | == Units == |
Revision as of 16:10, 27 April 2012
The package FCL-db contains most of FPC's higher level database system, plus table drivers for some popular systems.
Known issues/shortcomings
- Master - detail relations are not complete
- Calculated field support is not complete
- No binary data transfer using parameters (everything is converted to ASCII) in most drivers.
- There are some floating point issues, with precision and scale parameters only minimally supported in some drivers (amongst others mysql)
- Most character encoding issues are solved fairly ad hoc. There is no way to set the fundamental encodings manually:
- the encoding of the connection
- the encoding of the components internal storage
- the encoding of GUI components
- (optionally, encoding of exports, or fileformats)
- Many driver dependent issues in datetime types and timezone support.
- Between the drivers, Firebird is used the most, then Mysql, SQLite, PostgreSQL and ODBC. Finally comes Oracle which is mostly still at a proof of concept level. The Microsoft SQL Server and Sybase ASE drivers are a recent addition to FPC (2.6.1 and higher) and Lazarus.
- Before FPC 2.6: no stored procedure resultset >1 row
Most of these are being worked on, and the status changes on a monthly basis, so be sure to do your own testing and source inspection, since this will be most certainly out of date.
A testsuite exists and is being expanded which hopefully will accelerate accepting patches (and make it easier for contributors to create quality patches), and get rid of some of the 120 database related bugreports.
Units
(In the below table the subdir is listed as "submodule", so one can see easily to which subsystem the unit belongs.
Unit | submodule | comment |
---|---|---|
browseds | sqlite | |
bufdataset | base | |
bufdataset_parser | base | |
concurrencyds | sqlite | |
createds | sqlite | |
customsqliteds | sqlite | |
db | base | |
dbcoll | base | |
dbconst | base | |
dbf | dbase | |
dbf_avl | dbase | |
dbf_collate | dbase | |
dbf_common | dbase | |
dbf_cursor | dbase | |
dbf_dbffile | dbase | |
dbf_fields | dbase | |
dbf_idxcur | dbase | |
dbf_idxfile | dbase | |
dbf_lang | dbase | |
dbf_memo | dbase | |
dbf_parser | dbase | |
dbf_pgcfile | dbase | |
dbf_pgfile | dbase | |
dbf_prscore | dbase | |
dbf_prsdef | dbase | |
dbf_prssupp | dbase | |
dbf_reg | dbase | |
dbf_str | dbase | |
dbf_str_es | dbase | |
dbf_str_fr | dbase | |
dbf_str_ita | dbase | |
dbf_str_nl | dbase | |
dbf_str_pl | dbase | |
dbf_str_pt | dbase | |
dbf_str_ru | dbase | |
dbf_wtil | dbase | |
dbwhtml | base | |
fillds | sqlite | |
fpcgcreatedbf | codegen | |
fpcgdbcoll | codegen | |
fpcgsqlconst | codegen | |
fpcgtiopf | codegen | |
fpcsvexport | export | |
fpdatadict | datadict | |
fpdbexport | export | |
fpdbfexport | export | |
fpddcodegen | codegen | |
fpdddbf | datadict | |
fpdddiff | datadict | |
fpddfb | datadict | |
fpddmysql40 | datadict | |
fpddmysql41 | datadict | |
fpddmysql50 | datadict | |
fpddodbc | datadict | |
fpddoracle | datadict | |
fpddpopcode | codegen | |
fpddpq | datadict | |
fpddregstd | datadict | |
fpddsqldb | datadict | |
fpddsqlite3 | datadict | |
fpfixedexport | export | Dataset export to fixed width text format |
fprtfexport | export | Dataset export to RTF format |
fpsimplejsonexport | export | Dataset export to JSON format |
fpsimplexmlexport | export | Dataset export to ASCII encoded XML |
fpsqlexport | export | Dataset export to SQL Insert/Update statements |
fpstdexports | export | |
fptexexport | export | Dataset export to Latex format |
fpXMLXSDExport | export | Dataset export to various XML formats: Access, ADO.Net, Excel, Delphi ClientDataset |
ibconnection | sqldb/interbase | |
memds | memds | |
mysql40conn | sqldb/mysql | |
mysql41conn | sqldb/mysql | |
mysql4conn | sqldb/mysql | |
mysql50conn | sqldb/mysql | |
mysql51conn | sqldb/mysql | |
mysql55conn | sqldb/mysql | |
odbcconn | sqldb/odbc | |
oracleconnection | sqldb/oracle | |
pqconnection | sqldb/postgres | |
sqlite3conn | sqldb/sqlite | |
mssqlconn | sqldb/mssql | |
paradox | paradox | |
sdfdata | sdf | |
sqldb | sqldb | |
sqlite3ds | sqlite | |
sqliteds | sqlite | |
sqlscript | base | |
tdbf_l | dbase | |
testcp | memds | |
testdbf | dbase | |
testds | sqlite | |
testfix | sdf | |
testld | memds | |
testopen | memds | |
testpop | memds | |
testsdf | sdf | |
testsqldb | sqldb | |
xmldatapacketreader | base |