❔ filtering using dapper
Here is my function
public async Task<List<string>> GetNotExistBarcodes(IEnumerable<string> barcodes)
{
var param = new DynamicParameters();
param.AddTable(
parameterName: "@barcodes",
dataTableType: "[app].[udt_ProductCompare]",
values: barcodes);
var sql = $@"
SELECT bc.[Barcode]
FROM @barcodes AS bc
WHERE NOT EXISTS (
SELECT [Id]
FROM [app].[MasterProduct] AS mp
WHERE mp.[Barcode] = bc.[Barcode]
);
";
var query = await WithDbConnection(conn => conn
.QueryAsync<string>(
sql: sql,
param: param,
commandType: CommandType.Text));
return query.ToList();
}
here is the User defined Table Type
IF TYPE_ID('[app].[udt_ProductCompare]') IS NOT NULL
DROP TYPE [app].[udt_ProductCompare];
CREATE TYPE [app].[udt_ProductCompare] AS TABLE
(
[Barcode] nvarchar NOT NULL UNIQUE
)
am getting this error any one can help me out with this
"There are not enough fields in the Structured type. Structured types must have at least one field"
2 Replies
are u programming on windows? if that the case I suggest u to create an appdata folder and put inside it a dateset connected to the db u r using
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