SelectQueryFluentBuilder.Join(String, SqlJoinType, String, String, ConditionType) Method
In This Article
Joins two tables. Allows you to specify the join operation type, column names by which the tables should be joined, and a relational operation that should be used to compare column values.
Namespace: DevExpress.DataAccess.Sql
Assembly: DevExpress.DataAccess.v24.2.dll
NuGet Package: DevExpress.DataAccess
#Declaration
public SelectQueryFluentBuilder Join(
string tableName,
SqlJoinType joinType,
string parentColumnName,
string nestedColumnName,
ConditionType compareOperator
)
#Parameters
Name | Type | Description |
---|---|---|
table |
String | The name of the table with which the current table of the query builder should be joined. |
join |
Sql |
The type of the join operation. |
parent |
String | A parent column name. |
nested |
String | A nested column name. |
compare |
Condition |
The relational operator type. |
#Returns
Type | Description |
---|---|
Select |
A query builder that contains the join operation result. |
#Example
using DevExpress.DataAccess.Sql;
// ...
var query = SelectQueryFluentBuilder
.AddTable("Categories")
.SelectColumns("CategoryID", "CategoryName")
.Join(tableName: "Products",
joinType: SqlJoinType.LeftOuter,
parentColumnName: "CategoryID",
nestedColumnName: "CtgID",
compareOperator: ConditionType.NotEqual)
.SelectColumn("ProductName")
.Build("Categories");
See Also