SAP HANA

司机简称

HANA

生成依赖项

odbc-cpp-wrapper

This driver implements read and write access for spatial data stored in an SAP HANA database.

驱动程序功能

Supports Create()

This driver supports the GDALDriver::Create() operation

Supports Georeferencing

This driver supports georeferencing

连接到数据库

To connect to an SAP HANA database, use a connection string specifying the database name, with additional parameters as necessary. The HANA: prefix is used to mark the name as a HANA connection string.

HANA:"DRIVER={HDBODBC};DATABASE=HAN;HOST=localhost;PORT=30015;USER=mylogin;PASSWORD=mypassword;SCHEMA=MYSCHEMA"
在此语法中，每个参数设置的格式为keyword=value。等号周围的空格是可选的。要写入空值或包含空格的值，请用单引号将其括起来，例如keyword='a value'。值中的单引号和反斜杠必须用反斜杠转义，即'和。

SQL语句

The HANA driver passes SQL statements directly to HANA by default, rather than evaluating them internally when using the ExecuteSQL() call on the OGRDataSource, or the -sql command option to ogr2ogr. Attribute query expressions are also passed directly through to HANA. It's also possible to request the OGR HANA driver to handle SQL commands with the OGR SQL engine, by passing "OGRSQL" string to the ExecuteSQL() method, as the name of the SQL dialect.

The HANA driver in OGR supports the OGRDataSource::StartTransaction(), OGRDataSource::CommitTransaction() and OGRDataSource::RollbackTransaction() calls in the normal SQL sense.

创建问题

The HANA driver does not support creation of new schemas, but it does allow creation of new layers (tables) within an existing schema.

Dataset Open options

DSN=string: Data source name.
DRIVER=string: Name or a path to a driver. For example, DRIVER={HDBODBC} (Windows) or DRIVER=/usr/sap/hdbclient/libodbcHDB.so (Linux/MacOS).
HOST=string: Server host name.
PORT=integer: Port number.
USER =字符串：用户名。
PASSWORD=string: User password.
DATABASE=string: Database name.
SCHEMA=string: Specifies schema used for tables listed in TABLES option.
TABLES =字符串：要列出的受限表集（逗号分隔）。
ENCRYPT=boolean: Enables or disables TLS/SSL encryption. The default value is "NO".
SSL_CRYPTO_PROVIDER=string: Cryptographic library provider used for SSL communication (commoncrypto| sapcrypto | openssl).
SSL_KEY_STORE=string: Path to the keystore file that contains the server's private key.
SSL_TRUST_STORE=string: Path to trust store file that contains the server's public certificate(s) (OpenSSL only).
SSL_VALIDATE_CERTIFICATE=string: If set to true, the server's certificate is validated. The default value is "YES".
SSL_HOST_NAME_IN_CERTIFICATE=string: Host name used to verify server's identity validated.
CONNECTION_TIMEOUT=integer: Connection timeout measured in milliseconds. The default value is 0 (disabled).
PACKET_SIZE=integer: Sets the maximum size of a request packet sent from the client to the server, in bytes. The minimum is 1 MB. The default value is 1 MB.
SPLIT_BATCH_COMMANDS=boolean: Allows split and parallel execution of batch commands on partitioned tables. The default value is "YES".
DETECT_GEOMETRY_TYPE=boolean: Specifies whether to detect the type of geometry columns. Note, the detection may take a significant amount of time for large tables. The default value is "YES".

数据集创建选项

没有

图层创建选项

OVERWRITE: This may be "YES" to force an existing layer of the desired name to be destroyed before creating the requested layer. The default value is "NO".
LAUNDER: This may be "YES" to force new fields created on this layer to have their field names "laundered" into a form more compatible with HANA. This converts to upper case and converts some special characters like "-" and "#" to "_". 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 layer to try and represent the width and precision information, if available using DECIMAL(width,precision) or CHAR(width) types. If "NO" then the types REAL, INTEGER and VARCHAR will be used instead. The default is "YES".
DEFAULT_STRING_SIZE: Specifies default string column size. The default value is 256.
GEOMETRY_NAME: Specifies the name of the geometry column in new table. If omitted it defaults to GEOMETRY.
GEOMETRY_NULLABLE: Specifies whether the values of the geometry column can be NULL or not. The default value is "YES".
SRID: Specifies the SRID of the layer.
FID: Specifies the name of the FID column to create. The default value is 'OGR_FID'.
FID64: Specifies whether to create the FID column with BIGINT type to handle 64bit wide ids. The default value is NO.
COLUMN_TYPES: Specifies a comma-separated list of strings in the format field_name=hana_field_type that define column types.
BATCH_SIZE: Specifies the number of bytes to be written per one batch. The default value is 4194304 (4MB).

Multitenant Database Containers

In order to connect to a tenant database, you need to specify a port number assigned exactly to a desired instance. This port number can be determined by executing the following query from the tenant database.

SELECT SQL_PORT FROM SYS.M_SERVICES WHERE ((SERVICE_NAME='indexserver' and COORDINATOR_TYPE= 'MASTER') or (SERVICE_NAME='xsengine'))

For more details, see Section 2.9 Connections for Multitenant Database Containers in SAP HANA Multitenant Database Containers.

实例

This example shows how to list HANA layers on a specified host using ogrinfo command.

ogrinfo -ro HANA:"DRIVER={HDBODBC};DATABASE=HAN;HOST=localhost;PORT=30015;USER=mylogin;PASSWORD=mypassword;SCHEMA=MYSCHEMA"

或

ogrinfo -ro HANA:"DSN=MYHANADB;USER=mylogin;PASSWORD=mypassword;SCHEMA=MYSCHEMA"

This example shows how to print summary information about a given layer, i.e. 'planet_osm_line', using ogrinfo.

ogrinfo -ro HANA:"DRIVER={HDBODBC};DATABASE=HAN;HOST=localhost;PORT=30015;USER=mylogin;PASSWORD=mypassword;SCHEMA=MYSCHEMA" -so "planet_osm_line"

Layer name: planet_osm_line
Geometry: Line String
Feature Count: 81013
Extent: (732496.086304, 6950959.464783) - (1018694.144531, 7204272.976379)
Layer SRS WKT:
PROJCS["WGS 84 / Pseudo-Mercator",
    GEOGCS["WGS 84",
        DATUM["WGS_1984",
            SPHEROID["WGS 84",6378137,298.257223563, AHORITY["EPSG","7030"]],
            AUTHORITY["EPSG","6326"]],
            PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]],
            UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]],
            AUTHORITY["EPSG","4326"]],
        PROJECTION["Mercator_1SP"],
        PARAMETER["central_meridian",0],
        PARAMETER["scale_factor",1],
        PARAMETER["false_easting",0],
        PARAMETER["false_northing",0],
        UNIT["metre",1,AUTHORITY["EPSG","9001"]],
        AXIS["X",EAST],
        AXIS["Y",NORTH],
        AUTHORITY["EPSG","3857"]]
Geometry Column = way
osm_id: Integer64 (0.0)
access: String (4000.0)
addr:housename: String (4000.0)
addr:housenumber: String (4000.0)
addr:interpolation: String (4000.0)
admin_level: String (4000.0)
aerialway: String (4000.0)
aeroway: String (4000.0)

This example shows how to export data from the 'points' table to a shapefile called 'points_output.shp'.

ogr2ogr -f "ESRI Shapefile" "D:\\points_output.shp" HANA:"DRIVER={HDBODBC};DATABASE=HAN;HOST=localhost;PORT=30015;USER=mylogin;PASSWORD=mypassword;SCHEMA=GIS;TABLES=points"

This example shows how to create and populate a table with data taken from a shapefile.

ogr2ogr -f HANA HANA:"DRIVER={HDBODBC};DATABASE=HAN;HOST=localhost;PORT=30015;USER=mylogin;PASSWORD=mypassword;SCHEMA=MYSCHEMA" myshapefile.shp

For developers

To compile the SAP HANA driver, odbc-cpp-wrapper library needs to be linked or installed. For more details, see comments in nmake.opt or configure.ac files to build the driver for Windows or Linux/MacOS correspondingly.