SqlBuilder.addFieldId

gda.types.SqlBuilderId addFieldId(string fieldName, string tableName = null)

Defines an expression representing a field in builder, which may be reused to build other parts of a statement, for instance as a parameter to [gda.sql_builder.SqlBuilder.addCond] or [gda.sql_builder.SqlBuilder.addFieldValueId].

Calling this with a null table_name is equivalent to calling [gda.sql_builder.SqlBuilder.addId].

For SELECT queries, see [gda.sql_builder.SqlBuilder.selectAddField].

Parameters

`fieldName`	a field name
`tableName`	a table name, or null

Returns

the ID of the new expression, or 0 if there was an error