Получение информации о структуре SQL-объекта

Ниже приведен пример использования операции GetDbCommand для получения информации о тексте SQL-запроса и структуре полей набора данных, который возвращается при выполнении запроса. В запросе передается моникёр открытого экземпляра SQL-объекта и шаблон, указывающий необходимость получить данную информацию. В ответе приходит запрошенная информация.

SOAP-запрос:

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
<s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<GetDbCommand xmlns="http://www.fsight.ru/PP.SOM.Som">
<tDbCommand xmlns="">
  <id>KBCFEJFKABODGOAEODNPLELCGJNJEMEEKKAKMINPLIABGDLF!M!S!MKMLJCMFKABODGOAELEAAIAKKFADKILKEJLMIMPHCMKJAKDKO</id>
  </tDbCommand>
<tArg xmlns="">
<pattern>
  <obInst>true</obInst>
  <parsOwnDefVals>true</parsOwnDefVals>
  <text>true</text>
  <fields>Get</fields>
  </pattern>
  </tArg>
  </GetDbCommand>
  </s:Body>
  </s:Envelope>

SOAP-ответ:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<GetDbCommandResult xmlns="http://www.fsight.ru/PP.SOM.Som" xmlns:q1="http://www.fsight.ru/PP.SOM.Som" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<id xmlns="">
  <id>KBCFEJFKABODGOAEODNPLELCGJNJEMEEKKAKMINPLIABGDLF!M!S!MKMLJCMFKABODGOAELEAAIAKKFADKILKEJLMIMPHCMKJAKDKO</id>
  </id>
<meta xmlns="">
<obInst>
<obDesc ds="" isShortcut="0" isLink="0" ver="14" hf="0">
  <i>T_QUERY</i>
  <n>Query</n>
  <k>9051</k>
  <c>770</c>
  <p>9050</p>
  <h>0</h>
  <hasPrv>0</hasPrv>
  <ic>0</ic>
  <trackElementDependents>0</trackElementDependents>
  <isPermanent>1</isPermanent>
  <isTemp>0</isTemp>
  </obDesc>
  </obInst>
  <dirty>0</dirty>
  <type>Query</type>
<text>
<its>
<it>
  <driverID>ORCL8</driverID>
  <driverName>Oracle</driverName>
  <sqlText />
  </it>
<it>
  <driverID>MSSQL2012</driverID>
  <driverName>Microsoft SQL Server</driverName>
  <sqlText>SELECT * FROM T_COUNTRY</sqlText>
  </it>
<it>
  <driverID>MSSQL2012ODBC</driverID>
  <driverName>Microsoft SQL Server (ODBC)</driverName>
  <sqlText>SELECT * FROM T_COUNTRY</sqlText>
  </it>
<it>
  <driverID>ODBC(CLICKHOUSE)</driverID>
  <driverName>ClickHouse (ODBC)</driverName>
  <sqlText />
  </it>
<it>
  <driverID>ODBC</driverID>
  <driverName>Generic ODBC</driverName>
  <sqlText />
  </it>
<it>
  <driverID>OLEDB(ODBC HIVE)</driverID>
  <driverName>OLE DB(ODBC HIVE)</driverName>
  <sqlText />
  </it>
<it>
  <driverID>OLEDB(ODBC)</driverID>
  <driverName>OLE DB(ODBC)</driverName>
  <sqlText />
  </it>
<it>
  <driverID>OLEDB</driverID>
  <driverName>OLE DB</driverName>
  <sqlText />
  </it>
<it>
  <driverID>POSTGRES(NO_LO)</driverID>
  <driverName>Greenplum/Pivotal HD Hawq</driverName>
  <sqlText />
  </it>
<it>
  <driverID>POSTGRES</driverID>
  <driverName>PostgreSQL</driverName>
  <sqlText />
  </it>
<it>
  <driverID>SQLITE</driverID>
  <driverName>SQLite</driverName>
  <sqlText />
  </it>
<it>
  <driverID>WSF</driverID>
  <driverName>WEB Service</driverName>
  <sqlText />
  </it>
  </its>
  <sqlText>SELECT * FROM T_COUNTRY</sqlText>
  </text>
<fields>
<its>
<it>
  <k>5</k>
  <id>ISO_CODE</id>
  <n>ISO_CODE</n>
  <vis>1</vis>
  <dt>1</dt>
  <size>255</size>
  <precision>0</precision>
  </it>
<it>
  <k>6</k>
  <id>NAME</id>
  <n>NAME</n>
  <vis>1</vis>
  <dt>1</dt>
  <size>255</size>
  <precision>0</precision>
  </it>
<it>
  <k>7</k>
  <id>POPULATION</id>
  <n>POPULATION</n>
  <vis>1</vis>
  <dt>3</dt>
  <size>22</size>
  <precision>2</precision>
  </it>
<it>
  <k>8</k>
  <id>AREA</id>
  <n>AREA</n>
  <vis>1</vis>
  <dt>3</dt>
  <size>22</size>
  <precision>2</precision>
  </it>
<it>
  <k>9</k>
  <id>CURRENCY</id>
  <n>CURRENCY</n>
  <vis>1</vis>
  <dt>1</dt>
  <size>255</size>
  <precision>0</precision>
  </it>
  </its>
  </fields>
  </meta>
  </GetDbCommandResult>
  </soapenv:Body>
  </soapenv:Envelope>

JSON-запрос:

{
"GetDbCommand" :
{
"tDbCommand" :
{
"id" : "KBCFEJFKABODGOAEODNPLELCGJNJEMEEKKAKMINPLIABGDLF!M!S!MKMLJCMFKABODGOAELEAAIAKKFADKILKEJLMIMPHCMKJAKDKO"
},
"tArg" :
{
"pattern" :
{
"obInst" : "true",
"parsOwnDefVals" : "true",
"text" : "true",
"fields" : "Get"
}
}
}
}

JSON-ответ:

{
"GetDbCommandResult" :
{
"id" :
{
"id" : "KBCFEJFKABODGOAEODNPLELCGJNJEMEEKKAKMINPLIABGDLF!M!S!MKMLJCMFKABODGOAELEAAIAKKFADKILKEJLMIMPHCMKJAKDKO"
},
"meta" :
{
"obInst" :
{
"obDesc" :
{
"@ds" : "",
"@isShortcut" : "0",
"@isLink" : "0",
"@ver" : "14",
"@hf" : "0",
"i" : "T_QUERY",
"n" : "Query",
"k" : "9051",
"c" : "770",
"p" : "9050",
"h" : "0",
"hasPrv" : "0",
"ic" : "0",
"trackElementDependents" : "0",
"isPermanent" : "1",
"isTemp" : "0"
}
},
"dirty" : "0",
"type" : "Query",
"text" :
{
"its" :
{
"it" :
[
{
"driverID" : "ORCL8",
"driverName" : "Oracle",
"sqlText" : ""
},
{
"driverID" : "MSSQL2012",
"driverName" : "Microsoft SQL Server",
"sqlText" : "SELECT * FROM T_COUNTRY"
},
{
"driverID" : "MSSQL2012ODBC",
"driverName" : "Microsoft SQL Server (ODBC)",
"sqlText" : "SELECT * FROM T_COUNTRY"
},
{
"driverID" : "ODBC(CLICKHOUSE)",
"driverName" : "ClickHouse (ODBC)",
"sqlText" : ""
},
{
"driverID" : "ODBC",
"driverName" : "Generic ODBC",
"sqlText" : ""
},
{
"driverID" : "OLEDB(ODBC HIVE)",
"driverName" : "OLE DB(ODBC HIVE)",
"sqlText" : ""
},
{
"driverID" : "OLEDB(ODBC)",
"driverName" : "OLE DB(ODBC)",
"sqlText" : ""
},
{
"driverID" : "OLEDB",
"driverName" : "OLE DB",
"sqlText" : ""
},
{
"driverID" : "POSTGRES(NO_LO)",
"driverName" : "Greenplum\/Pivotal HD Hawq",
"sqlText" : ""
},
{
"driverID" : "POSTGRES",
"driverName" : "PostgreSQL",
"sqlText" : ""
},
{
"driverID" : "SQLITE",
"driverName" : "SQLite",
"sqlText" : ""
},
{
"driverID" : "WSF",
"driverName" : "WEB Service",
"sqlText" : ""
}
]
},
"sqlText" : "SELECT * FROM T_COUNTRY"
},
"fields" :
{
"its" :
{
"it" :
[
{
"k" : "5",
"id" : "ISO_CODE",
"n" : "ISO_CODE",
"vis" : "1",
"dt" : "1",
"size" : "255",
"precision" : "0"
},
{
"k" : "6",
"id" : "NAME",
"n" : "NAME",
"vis" : "1",
"dt" : "1",
"size" : "255",
"precision" : "0"
},
{
"k" : "7",
"id" : "POPULATION",
"n" : "POPULATION",
"vis" : "1",
"dt" : "3",
"size" : "22",
"precision" : "2"
},
{
"k" : "8",
"id" : "AREA",
"n" : "AREA",
"vis" : "1",
"dt" : "3",
"size" : "22",
"precision" : "2"
},
{
"k" : "9",
"id" : "CURRENCY",
"n" : "CURRENCY",
"vis" : "1",
"dt" : "1",
"size" : "255",
"precision" : "0"
}
]
}
}
}
}
}
public static GetDbCommandResult GetSQLObjectParameters(DbCommandId moniker)
{
var somClient = new SomPortTypeClient(); // Прокси-объект для выполнения операций
// Параметры выполнения операции
var tGet = new GetDbCommand()
{
tArg = new GetDbCommandArg()
{
pattern = new DbCommandMdPattern()
{
fields = ListOperation.Get,
text = true
}
},
tDbCommand = moniker
};
// Получение параметров
var tResult = somClient.GetDbCommand(tGet);
return tResult;
}

См. также:

GetDbCommand