banner sql 201

Banner SQL 201

Georgia Summit 2013

Thursday, September 19th4:10pm - 5:00pm

Estes B

Zachary HayesAssociate Registrar

Georgia Institute of Technology

Monday, September 23, 13

Introduction• Who is this guy?

• 10 years within USG

• Self-taught SQL and Banner

• Where does he work?

• Banner 8.5 / Oracle 11g

• Enterprise Information Systems

• Technical Analysts, Developers, DBAs

• Office of the Registrar

• Business/Information Analysts,Assistant Registrar for Technology

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Disclaimer

• I am not an expert

• There may be better ways to do this

• Your user access may not permit table queries

• Your IT staff may not want to help you

• For ages 13+ contains small parts not suitable for children

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Agenda• Banner SQL 101 refresher

• Banner Oracle SQL

• Null Value

• Decode

• Left Join

• Exist

• Count / Group By / Having

• Questions4


Data Dictionary• What are Banner tables and columns named?

• Banner Dynamic Help Query

• Within INB, click a field you want to get information on

• Select Help > Dynamic Help Query

• Popup will usually show you the column name from the database

• When in doubt, ask your technical staff

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101


Data Dictionary

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101


Data Dictionary• Oracle Data Dictionary

• Read what Ellucian may have included in the Oracle Data Dictionary

• ALL_TAB_COMMENTS

• ALL_COL_COMMENTS

• Will need to query via a SQL tool (SQL*Plus, SQL Developer, Toad, etc)

• Will need access to query the database directly, and may need additional access to these views

• When in doubt, ask your technical staff

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101


Data Dictionary• ALL_COL_COMMENTS

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101


• PopSels are handy, but what if

• you need more data than just a student ID

• you need more than one subquery

• you need an outer join

• you need data outside of Banner’s standard schema (ex: DegreeWorks database)

• Roll up your sleeves, make friends with your IT staff, and query the tables directly!

• If you have mastered SQL within PopSels, you already have a solid foundation to work from

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101 PopSel Limitations


Banner Oracle SQL• one table, wild card value

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101


Banner Oracle SQL• two tables, date value

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101


Banner Oracle SQL• two tables, parameters, subquery

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101


Banner Oracle SQL• NVL (Null Value)

• Something that is null does not exist

• If something doesn’t exist, you can’t:

• display anything for it

• do any calculations against it

• NVL temporarily puts a value in when it is null

• This does not alter what is stored in the database

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NVL

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NVL• Syntax:

• NVL(field, replace)

• For humans:

• If <field> is null, then temporarily insert the <replace> value

• If <field> is not null, then keep <field> value

• <replace> can be another field or your own value

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NVL• Example 1 (before)

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NVL• Example 1 (after)

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NVL• Example 1 (before and after)

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NVL• Example 2

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Banner Oracle SQL• Decode

• Similar to an IF - THEN - ELSE statement

• If you have values in the database that you want to temporarily massage/tweak for your query, decode will do the trick

• Great tool to make results easier for the end user as to compared to what may be under the hood of the database

• This does not alter what is stored in the database

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Decode

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Decode• Syntax:

• DECODE(field, search1, replace1, search2, replace2, ... , default)

• For humans:

• If <field> matches <search1>, then temporarily replace the value with <replace1>

• If <field> matches <search2>, then temporarily replace the value with <replace2>

• If <field> doesn’t match any <search> value, then temporarily replace the value with <default>

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Decode• For humans (cont.):

• <search>, <replace>, and <default> can be another field or your own value

• <default> is optionalIf the <field> doesn’t match any <search> values and there is no <default> the result will be null

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Decode• Example 1

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FERPA

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FERPA

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FERPAMonday, September 23, 13

Decode• Example 2

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Banner Oracle SQL• Simple Join (Inner Join)

• Joins two tables and shows results from both so long as the join condition between the two is met

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101

BA


Banner Oracle SQL• Left Join (Left Outer Join)

• Joins two tables and shows all results from the left and only those from the right where the join condition between the two is met

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BA


Left Join

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Left Join• Example 1

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Left Join• Example 2

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Banner Oracle SQL• Exists

• You might find a time where you don’t want to join two tables (which can limit your results) but instead you just need to know if a condition exists in another table

• Also have the option to determine if a condition does not exist

• Uses a standard subquery, but it only cares if at least one row is produced

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Exists• Zach is staying at the Double Tree Hotel. What

other hotel brands are related to this hotel?

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Exists• Syntax:

• EXISTS(select ‘T’ from ... where ...)

• For humans:

• So long as the subquery returns one row, the condition is met and the main query will continue

• NOT EXISTS will have the inverse result

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Exists• Example 1 (before)

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Exists• Example 1 (after)

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Exists• Example 1 (before and after)

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Exists• Example 2

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Banner Oracle SQL• Count / Group / Having

• You may not always want raw record data, but instead aggregate data that summarizes the data

• In order to aggregate data, you have to determine how the data should be grouped

• Once the data is grouped and aggregated, you might need to filter results to those that have met your condition

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Count / Group / Having1) How many kids by shirt color?

2) How many kids by sex?

3) How many kids by sex having >5?

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B = 7 ; G = 7





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B = 7 ; G = 7

F = 2 ; M = 12





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B = 7 ; G = 7

F = 2 ; M = 12

M = 12


Count / Group / Having• Syntax:

• SELECT <field1>, count<values>FROM <table>WHERE ...GROUP BY <field1>HAVING count<values> <filter>

• For humans:

• Count <values> from <table> grouped by <field1> that have meet <filter> condition

• All SELECT fields must be in the GROUP BY

• HAVING is optional41


Count / Group / Having• Example 1 (no Having)

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Count / Group / Having• Example 1 (Having)

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Count / Group / Having• Example 2 (no Having)

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Count / Group / Having• Example 2 (Having)

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NVL, Decode, Left Join, Exists, Count/Group/Having

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Banner SQL 201

Questions?

Zachary Hayes

[email protected]

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banner sql 201

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