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EdmiError edmiOpenDatabase(SdaiString location,
SdaiString databaseName,
SdaiString password);
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Opens an existing EDMdatabase and attach the actual EDMdatabase to the EDMserver used by the caller. An EDMdatabase must be open before any access to the database is permitted.
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In a single-user system the EDMserver is embedded in the EDMinterface, in a multi-user system the EDMserver is running as a separate process on the same system or on another system than the caller.
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One EDMserver can handle only one single EDMdatabase at a time, i.e. the currently opened database must be closed before another one can be opened.
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This operation is protected with a password. This password is defined when the actual EDMdatabase is created.
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Arguments
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| Type | Name | Comment | |
| SdaiString | location | Specifies the path to the directory where the database is located. The <location> must be specified as an absolute of the actual EDMserver. | The <location> > argument can be specified with and without the directory delimiter character as the last character in the directory path. The directory delimiter character is '\' on the Windows platforms and '/' on the Unix platforms. |
| SdaiString | databaseName | Specifies the name of the EDMdatabase to open. EDMdatabase names are case sensitive on the UNIX platforms and case insensitive on the Windows platforms. | |
| SdaiString | password | Specifies the password for the actual database. The password for the database is defined by the edmiCreateDatabase function. |
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Return Value
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Options
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Example
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EdmiError rstat; SdaiSession sessionId; . . . if (rstat = edmiOpenDatabase ("/usr/EDM/databases/", |
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"Ship", |
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"hkd")) { |
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/* Error in operation */ |
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printf("\nError: %s in edmiOpenDatabase \n", |
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edmiGetErrorText(rstat)); |
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goto error; |
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} sessionId = sdaiOpenSession(); |
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if (! sessionId) { |
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/* Error in operation */ |
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printf("\nError: %s in sdaiOpenSession\n", |
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edmiGetErrorText(rstat)); |
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goto error; |
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}
. . . |
See also
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