![]() When set to ON, if null values appear in aggregate functions, such as SUM, AVG, MAX, MIN, STDEV, STDEVP, VAR, VARP, or COUNT, a warning message is generated. When set.
PHP: SQLSRV - Manual. ![]() Microsoft SQL Server Spatial Database. This driver implements support for access to spatial tables in Microsoft SQL. Server 2. 00. 8+ which contains the geometry and geography data types to represent. Connecting to a database. To connect to a MSSQL datasource, use a connection string specifying the database name. The connection strings must be prefixed. MSSQL: '. MSSQL: server=.\MSSQLSERVER2. In addition to the standard parameters of the. ODBC driver connection string. Tables=schema. 1. By using this parameter you can specify the subset of the layers to be used by the driver. If this parameter is not set, the layers are retrieved from the geometry_columns metadata table. You can omit specifying the schema and the geometry column portions of the syntax. Geometry. Format=native|wkb|wkt|wkbzm. The desired format in which the geometries should be retrieved from the server. The default value is 'native' in this case the native Sql. Geometry and Sql. Geography serialization format is used. When using the 'wkb' or 'wkt' setting the geometry representation is converted to 'Well Known Binary' and 'Well Known Text' at the server. This conversion requires a significant overhead at the server and makes the feature access slower than using the native format. The wkbzm format can only be used with SQL Server 2. The parameter names are not case sensitive in the connection strings. Specifying the. Database parameter is required by the driver in order to select the proper database. The connection may contain the optional. Driver parameter if a custom SQL server driver should be loaded (like Free. TDS). The default is {SQL Server}Layers. Starting with GDAL 1. MSSQLSPATIAL_LIST_ALL_TABLES=YES (and does not specify Tables= in the connection string). This option is useful if you want tables with. By default the MSSQL driver will only look for layers that are registered in the geometry_columns metadata table. Starting with GDAL 1. MSSQLSPATIAL_USE_GEOMETRY_COLUMNS=NO then the driver will look for all user spatial tables found in the system catalog. SQL statements. The MS SQL Spatial driver passes SQL statements directly to MS SQL by default. Execute. SQL() call on the. OGRData. Source, or the - sql command option to ogr. Attribute query. expressions are also passed directly through to MSSQL. It's also possible to request the OGR MSSQL driver to handle SQL commands. OGR SQL engine, by passing "OGRSQL". Execute. SQL() method, as the name of the SQL dialect. The MSSQL driver in OGR supports the OGRLayer: :Start. Transaction(). OGRLayer: :Commit. Transaction() and OGRLayer: :Rollback. Transaction(). calls in the normal SQL sense. Creation Issues. This driver doesn't support creating new databases, you might want to use the Microsoft SQL Server Client Tools for this purpose, but it does allow creation of new layers within an. Layer Creation Options. GEOM_TYPE: The GEOM_TYPE layer creation option can be set to. If this option is not specified the. So as to create the geometry column with. In this case the layer must have a valid. SQL Server metadata. Projected coordinate systems are not supported in this. OVERWRITE: This may be "YES" to force an existing layer of the. LAUNDER: This may be "YES" to force new fields created on this. MSSQL. This converts to lower case and converts some special characters. If "NO" exact names are preserved. The default value is "YES". If enabled the table (layer) name will also be laundered. PRECISION: This may be "YES" to force new fields created on this. If "NO" then the types. The default is "YES". DIM={2,3}: Control the dimension of the layer. Defaults to 3. GEOMETRY_NAME: Set the name of geometry column in the new table. If. omitted it defaults to ogr_geometry. Note: option was called GEOM_NAME in releases before GDAL 2. SCHEMA: Set name of schema for new table. If this parameter is not supported the default schema "dbo" is used. SRID: Set the spatial reference id of the new table explicitly. The corresponding entry should already be added to the spatial_ref_sys metadata table. If this parameter is not set the SRID is derived from the authority code of source layer SRS. SPATIAL_INDEX: (From GDAL 2. Boolean flag (YES/NO) to enable/disable the automatic creation of a spatial index on the newly created layers (enabled by default). UPLOAD_GEOM_FORMAT: (From GDAL 2. Specify the geometry format (wkb or wkt) when creating or modifying features. The default is wkb. FID: (From GDAL 2. Name of the FID column to create. Defaults to ogr_fid. FID6. 4: (From GDAL 2. Specifies whether to create the FID column with bigint type to handle 6. Default = NOGEOMETRY_NULLABLE: (From GDAL 2. Specifies whether the values of the geometry column can be NULL. Default = YESEXTRACT_SCHEMA_FROM_LAYER_NAME: (From GDAL 2. Can be set to NO to avoid considering the dot character as the separator between the schema and the table name. Defaults to YES. Spatial Index Creation. By default the MS SQL Spatial driver doesn't add spatial indexes to the tables during the layer creation. However you should create a spatial index by using the. The spatial index can also be dropped by using the following syntax: drop spatial index on schema. Configuration options. There are a variety of. Options which help control the behavior of this driver. MSSQLSPATIAL_USE_BCP: (From GDAL 2. Enable bulk insert when adding features. This option requires to. GDAL against a bulk copy enabled ODBC driver like SQL Server Native. Client 1. 1. 0. To specify a BCP supported driver in the connection string, use the. DRIVER={SQL Server Native Client 1. If GDAL is. compiled against SQL Server Native Client 1. If GDAL is. compiled against SQL Server Native Client 1. TRUE, otherwise the parameter is ignored by the driver. MSSQLSPATIAL_BCP_SIZE: (From GDAL 2. Specifies the bulk insert batch size. The larger value makes the insert faster, but consumes more memory. Default = 1. 00. 0. MSSQLSPATIAL_OGR_FID: Override FID column name. Default = ogr_fid. MSSQLSPATIAL_USE_GEOMETRY_COLUMNS: Use/create geometry_columns metadata table in the database. Default = "YES". MSSQLSPATIAL_LIST_ALL_TABLES: Use mssql catalog to list available layers. Default = "NO". Transaction support (GDAL > = 2. The driver implements transactions at the dataset level, per. RFC 5. 4Examples. Creating a layer from an OGR data source. MSSQLSpatial "MSSQL: server=.\MSSQLSERVER2. Connecting to a layer and dump the contents. MSSQL: server=.\MSSQLSERVER2. Creating a spatial index. MSSQL: server=.\MSSQLSERVER2.
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