Package com.exasol.sql.dml.merge
Class MergeColumnUpdate
- java.lang.Object
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- com.exasol.sql.AbstractFragment
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- com.exasol.sql.dml.merge.MergeColumnUpdate
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- All Implemented Interfaces:
MergeFragment
,Fragment
public class MergeColumnUpdate extends AbstractFragment implements MergeFragment
Update of a value in a column caused by aMERGE
command.
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Field Summary
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Fields inherited from class com.exasol.sql.AbstractFragment
root
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Constructor Summary
Constructors Constructor Description MergeColumnUpdate(Fragment root, String column, ValueExpression expression)
Create a new instance of aMergeColumnUpdate
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
accept(MergeVisitor visitor)
Accept a visitor (e.g.String
getColumn()
Get the column to be updated.ValueExpression
getExpression()
Get the expression that serves as the value for the update.-
Methods inherited from class com.exasol.sql.AbstractFragment
getRoot
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Constructor Detail
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MergeColumnUpdate
public MergeColumnUpdate(Fragment root, String column, ValueExpression expression)
Create a new instance of aMergeColumnUpdate
.- Parameters:
root
- root SQL statement this column update belongs tocolumn
- column to be updatedexpression
- expression that serves as the value for the update
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Method Detail
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getColumn
public String getColumn()
Get the column to be updated.- Returns:
- column
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getExpression
public ValueExpression getExpression()
Get the expression that serves as the value for the update.- Returns:
- value expression
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accept
public void accept(MergeVisitor visitor)
Description copied from interface:MergeFragment
Accept a visitor (e.g. a renderer or validator).- Specified by:
accept
in interfaceMergeFragment
- Parameters:
visitor
- visitor to accept
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