what is the difference between sql override and lookup override in informatica?
242212
The role of SQL Override is to limit the number of incoming rows entering the mapping pipeline, whereas Lookup Override is used to limit the number of lookup rows to avoid the whole table scan by saving the lookup time and the cache it uses.
155081
['Go to the Data tab on the Ribbon and select Connections. ... ', 'Choose the connection you want to edit and then click the Properties button.', 'The Connection Properties dialog box opens. ... ', 'Change the Command Type property to SQL and then enter your SQL statement.']
116835
SQL Server is a case-sensitive back-end application. This means that a table named "addr" is distinguished from a table named "ADDR." However, because Microsoft Query is an MS-DOS-based application, it is unable to distinguish cases; therefore, Microsoft Query views "addr" and "ADDR" as the same file.
28376
Extending and overlaying involves copying the component from /libs/ (or other base library) to /apps node and changing the behaviour. Override is similar to extend but the only difference is that you change the sling:resourceSuperType of the component so that it's behaviour completely changes (hence overridden).
57067
First difference is − in case of keep; both the datasets are available in QlikView's memory while in join the load statements produce only one data set from which you have to choose the columns. The second difference being − there is no concept of outer keep where as we have outer join available in case of joins.
1259099
To override, nullify, or add parameters to a procedure OUTPUT JCL or DD statement, code in the name field of the overriding OUTPUT JCL or DD statement the name of the procedure step containing the overridden statement, followed by a period, followed by the name of the procedure OUTPUT JCL statement or the ddname of the ...
397207
The basic difference is that a TEXT type will always store the data in a blob whereas the VARCHAR(MAX) type will attempt to store the data directly in the row unless it exceeds the 8k limitation and at that point it stores it in a blob. The text datatype is deprecated and should not be used for new development work.
1456065
AFTER is the default when FOR is the only keyword specified. AFTER triggers cannot be defined on views. INSTEAD OF Specifies that the DML trigger is executed instead of the triggering SQL statement, therefore, overriding the actions of the triggering statements.
487424
['Lookup value. The cell that has the unique identifier.', "Table range. The range of cells you're searching.", "Match type. Optional. It's how you specify how close of a match you want, as follows:"]
680841
Lookup is basically a specific dataset which is keyed. This can be used to mapping values as per the data present in a particular file (serial/multi file). ... Sometimes, hash-joins can be replaced by using reformat and lookup if one of the input to the join contains less number of records with slim record length.
645054
When VLOOKUP can't find a value in a lookup table, it returns the #N/A error. The IFERROR function allows you to catch errors and return your own custom value when there is an error. If VLOOKUP returns a value normally, there is no error and the looked up value is returned.
46978
['INSERT INTO SELECT requires that data types in source and target tables match.', 'The existing records in the target table are unaffected.']
789970
The ResultSet interface declares getter methods (for example, getBoolean and getLong ) for retrieving column values from the current row. You can retrieve values using either the index number of the column or the alias or name of the column. The column index is usually more efficient. Columns are numbered from 1.
774171
SQL allows the use of both column aliases and table aliases. This is done using the SQL AS keyword, which is an optional keyword in many SQL statements including SELECT, UPDATE, and DELETE.
1088194
The biggest difference is that oList. Where(e => e.Name == "John") is type of IEnumerable<Employee>, but oList. Find(e => e.Name == "John") is a type of Employee. ... Find(e => e.Name == "John"); both return employee data.
935273
Two Variants of IDQ Informatica developer is a client based tool where developers can create mappings to implement data quality transformations/services. This tool offers an editor where objects can be built with a wide range of data quality transformations like Parser, standardizer, address validator, match-merge etc.
167896
['string id= ds.Tables[0].Rows[0]["columnname"].Tostring();', 'string name=ds.Tables[0].Rows[0]["Columnname"].Tostring();', 'string address=ds.Tables[0].Rows[0]["columnname"].Tostring();', '(or)', 'string id= ds. Tables[0]. Rows[0][0]. ... ', 'string name=ds. Tables[0]. ... ', 'string address=ds. Tables[0].']