def filter_by(self, **kwargs): r"""Apply the given filtering criterion to a copy of this :class:`_query.Query`, using keyword expressions. e.g.:: session.query(MyClass).filter_by(name = 'some name') Multiple criteria may be specified as comma separated; the effect is that they wi...
Avoid using this feature in new development work, and plan to modify applications that currently use this feature. n Is a placeholder that indicates that up to 64 backup devices might be specified in a comma-separated list. MIRROR TO <backup_device> [ ,...n ] Specifies a set of up to...
'provider_string' A provider-specific connection string that is passed in as theDBPROP_INIT_PROVIDERSTRINGproperty to initialize the OLE DB provider.provider_stringtypically encapsulates all the connection information required to initialize the provider. For a list of keywords that the SQL Server Nativ...
A. Split comma-separated value string Parse a comma-separated list of values and return all non-empty tokens: SQL DECLARE@tagsNVARCHAR(400) ='clothing,road,,touring,bike'SELECTvalueFROMSTRING_SPLIT(@tags,',')WHERERTRIM(value) <>'';
B. Generate list of names separated with comma withoutNULLvalues The following example replaces null values with 'N/A' and returns the names separated by commas in a single result cell. SQL USEAdventureWorks2022; GOSELECTSTRING_AGG(CONVERT(NVARCHAR(MAX),ISNULL(FirstName,'N/A')),',')AScsv...
Use a comma-separated list to specify all of the server instances that might host a readable secondary replica. Read-only routing will follow the order in which server instances are specified in the list. If you include a replica's host server instance on the replica's read-only routing lis...
positional arguments: url SQLAlchemy url to the database optional arguments: -h, --help show this help message and exit --version print the version number and exit --schema SCHEMA load tables from an alternate schema --tables TABLES tables to process (comma-separated, default: all) --novie...
should be a comma: IF (@array=0 AND @json!='' AND LEFT(@json, 1)!=',') RETURN @output+'Expected "," after value, found "'+ LEFT(@json, 1)+'"!'; 2. .. or, if this is an array, the next character should be a comma or a closing angle bracket: ...
Before SQL Server 2017 (14.x), comma-separated value (CSV) files aren't supported by SQL Server bulk-import operations. However, in some cases, a CSV file can be used as the data file for a bulk import of data into SQL Server. For information about the requirements for importing data...
可以使用指定的分隔符将多个字段拼接在一起。例如，将 FirstName、MiddleName 和 LastName 三个字段用...