Re: [fpc-pascal] Re: RE : RE : Re: SQLDB GetSchemaInfoSQL for indexes etc?

[LacaK]

Reinier Olislagers  wrote / napísal(a):
On 19-4-2012 15:02, Ludo Brands wrote:
  
  
    
Ludo here I do not understand what do you want to say. may be, that my
      
english is not so good ;-)
    
Can you explain please what is your proposal regarding to stIndexes ?
      
stIndexes is currently not implemented: keep it that way (or drop it) but
add and implement stTableConstraints, stReferentialConstraints,
stKeyColumnUsage,
stConstraintColumnUsage and stConstraintTableUsage. And why not some other
missing information_schema views like 'views' or 'schemata'.
Delphi compatibility? Delphi adodb defines and implements the following:
type TSchemaInfo = (siAsserts, siCatalogs, siCharacterSets, siCollations,
siColumns, siCheckConstraints, siConstraintColumnUsage,
siConstraintTableUsage, siKeyColumnUsage, siReferentialConstraints,
siTableConstraints, siColumnsDomainUsage, siIndexes, siColumnPrivileges,
siTablePrivileges, siUsagePrivileges, siProcedures, siSchemata,
siSQLLanguages, siStatistics, siTables, siTranslations, siProviderTypes,
siViews, siViewColumnUsage, siViewTableUsage, siProcedureParameters,
siForeignKeys, siPrimaryKeys, siProcedureColumns);  
    
Fine with Ludo's proposal; dropping stIndexes... and adding new ISO
compliant stuff if needed.
Delphi has at least adodb and dbexpress with various implementations....
so not much of a standard.

Keeping to the information_schema standard seems like a good idea -
especially because it will make it easier to easily get useful info from
an ISO SQL 92+ compliant database..

Anybody against this? Michael? Joost?
  
Not against ;-)
Small drawback will be, that for those DB that do not have 
INFORMATION_SCHEMA there will be need for adding many selects against 
system tables (or do not implement them at all ;-))

Has anybody used this functionality in sqldb at all?
  
No. And I do not expect that I will use it in future.

-Laco.

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