Update resource links and noindex on AI pages

src/data/roadmaps/sql/content/basic-sql-syntax@JDDG4KfhtIlw1rkNCzUli.md

@@ -6,4 +6,3 @@ Learn more about SQL from the following resources:
 
 - [@article@SQL Tutorial - Mode](https://mode.com/sql-tutorial/)
 - [@article@SQL Tutorial](https://www.sqltutorial.org/)
-- [@article@SQL Tutorial - W3Schools](https://www.w3schools.com/sql/default.asp)

src/data/roadmaps/sql/content/case@W2ePJHdfEiEJ3ZKoRQKt_.md

@@ -4,5 +4,4 @@ The CASE statement in SQL is used to create conditional logic within a query, al
 
 Learn more from the following resources:
 
-- [@article@SQL CASE Expression](https://www.w3schools.com/sql/sql_case.asp)
 - [@article@SQL CASE - Intermediate SQL](https://mode.com/sql-tutorial/sql-case)

src/data/roadmaps/sql/content/check@Q0h9Wfnl_W9ThOkv7Q17A.md

@@ -4,5 +4,4 @@ A `CHECK` constraint in SQL is used to enforce data integrity by specifying a co
 
 Learn more from the following resources:
 
-- [@article@SQL CHECK Constraint](https://www.w3schools.com/sql/sql_check.asp)
 - [@video@CHECK Constraint](https://www.youtube.com/watch?v=EeG2boJCXbc)

src/data/roadmaps/sql/content/column@wmtt-3auWLdQWuVdwZLPd.md

@@ -4,5 +4,4 @@ In SQL, columns are used to categorize the data in a table. A column serves as a
 
 Learn more from the following resources:
 
-- [@article@SQL Column](https://www.w3schools.com/sql/sql_ref_column.asp)
 - [@article@Column Types - PostgreSQL](https://www.postgresqltutorial.com/postgresql-tutorial/postgresql-data-types/)

src/data/roadmaps/sql/content/concat@5inpEqafeVCfqsURHzQQg.md

@@ -5,4 +5,3 @@
 Learn more from the following resources:
 
 - [@article@An overview of the CONCAT function in SQL](https://www.sqlshack.com/an-overview-of-the-concat-function-in-sql-with-examples/)
-- [@article@SQL Server CONCAT](https://www.w3schools.com/sql/func_sqlserver_concat.asp)

src/data/roadmaps/sql/content/count@9aHYrOQDkA84tlxcVK5aD.md

@@ -4,5 +4,4 @@
 
 Learn more from the following resources:
 
-- [@article@COUNT](https://www.w3schools.com/sql/sql_count.asp)
 - [@article@COUNT SQL Function](https://www.datacamp.com/tutorial/count-sql-function)

src/data/roadmaps/sql/content/cross-join@7ow6tiSSCnTpv_GYQU017.md

@@ -6,5 +6,4 @@ The issue with cross join is it returns the Cartesian product of the two tables,
 
 Learn more from the following resources:
 
-- [@article@CROSS JOIN](https://www.w3schools.com/mysql/mysql_join_cross.asp)
 - [@article@SQL CROSS JOIN With Examples](https://www.sqlshack.com/sql-cross-join-with-examples/)

src/data/roadmaps/sql/content/data-constraints@qBios3sZVhcJMpXmj9f7B.md

@@ -4,5 +4,4 @@ Data constraints in SQL are rules applied to columns or tables to enforce data i
 
 Learn more from the following resources:
 
-- [@article@Data Constraints](https://www.w3schools.com/sql/sql_constraints.asp)
 - [@article@SQL Constraints](https://www.programiz.com/sql/constraints)

src/data/roadmaps/sql/content/date@Ivqo2wa-_NhGU3vGd0pUI.md

@@ -4,5 +4,4 @@ The DATE data type in SQL is used to store calendar dates (typically in the form
 
 Learn more from the following resources:
 
-- [@article@SQL DATE](https://www.w3schools.com/sql/sql_dates.asp)
 - [@video@Working with Dates](https://www.youtube.com/watch?v=XyZ9HwXoR7o)

src/data/roadmaps/sql/content/datepart@BJ4fQvagTO0B5UtXblyx8.md

@@ -4,5 +4,4 @@
 
 Learn more from the following resources:
 
-- [@article@DATEPART](https://www.w3schools.com/sql/func_sqlserver_datepart.asp)
 - [@article@SQL DATEPART](https://hightouch.com/sql-dictionary/sql-datepart)

src/data/roadmaps/sql/content/drop-table@YzJ6QmY2arMfRzMAPaI0T.md

@@ -6,5 +6,4 @@ When you execute the `DROP TABLE` statement, it eliminates both the table and it
 
 Learn more from the following resources:
 
-- [@article@DROP TABLE](https://www.w3schools.com/sql/sql_drop_table.asp)
 - [@article@Drop a Table](https://www.coginiti.co/tutorials/beginner/drop-a-table/)

src/data/roadmaps/sql/content/floor@o2SH4iQn1Ap2yDZ7cVYLO.md

@@ -6,5 +6,4 @@ One important aspect to note is that the `FLOOR` function's argument must be a n
 
 Learn more from the following resources:
 
-- [@article@FLOOR](https://www.w3schools.com/sql/func_sqlserver_floor.asp)
 - [@video@How to Round in SQL](https://www.youtube.com/watch?v=AUXw2JRwCFY)

src/data/roadmaps/sql/content/from@N1Racr3ZpU320gS545We8.md

@@ -6,5 +6,4 @@ Typically, `FROM` is followed by space delimited list of tables in which the SEL
 
 Learn more from the following resources:
 
-- [@article@SQL FROM Keyword](https://www.w3schools.com/sql/sql_ref_from.asp)
 - [@video@How to write basic SQL](https://www.youtube.com/watch?v=YfTDBA45PHk)

src/data/roadmaps/sql/content/full-outer-join@aS5zCyJRA779yHF0G2pje.md

@@ -4,5 +4,4 @@ A `FULL OUTER JOIN` in SQL combines the results of both `LEFT` and `RIGHT OUTER
 
 Learn more from the following resources:
 
-- [@article@FULL OUTER JOIN](https://www.w3schools.com/sql/sql_join_full.asp)
 - [@video@SQL FULL OUTER JOIN](https://www.youtube.com/watch?v=XpBkXo3DCEg)

src/data/roadmaps/sql/content/indexes@LcljR70T-OnzSrJJDqOWf.md

@@ -4,5 +4,4 @@ Indexes in SQL are database objects that improve the speed of data retrieval ope
 
 Learn more from the following resources:
 
-- [@article@Create SQL Index Statement](https://www.w3schools.com/sql/sql_create_index.asp)
 - [@video@SQL Indexing Best Practices](https://www.youtube.com/watch?v=BIlFTFrEFOI)

src/data/roadmaps/sql/content/inner-join@aaua13CkTxLOYXr8cAgPm.md

@@ -10,5 +10,4 @@ Few things to consider in case of `INNER JOIN`:
 
 Learn more from the following resources:
 
-- [@article@SQL INNER JOIN](https://www.w3schools.com/sql/sql_join_inner.asp)
 - [@article@SQL INNER JOIN Clause](https://www.programiz.com/sql/inner-join)

src/data/roadmaps/sql/content/insert@-Hew0y53ziZK3epQnGA0O.md

@@ -4,5 +4,4 @@ The "INSERT" statement is used to add new rows of data to a table in a database.
 
 Learn more from the following resources:
 
-- [@article@SQL INSERT](https://www.w3schools.com/sql/sql_insert.asp)
 - [@video@SQL INSERT Statement](https://www.youtube.com/watch?v=Yp1MKeIG-M4)

src/data/roadmaps/sql/content/insert@mPj6BiK5FKKkIQ9WsWEo6.md

@@ -4,5 +4,4 @@ The "INSERT" statement is used to add new rows of data to a table in a database.
 
 Learn more from the following resources:
 
-- [@article@SQL INSERT](https://www.w3schools.com/sql/sql_insert.asp)
 - [@video@SQL INSERT Statement](https://www.youtube.com/watch?v=Yp1MKeIG-M4)

src/data/roadmaps/sql/content/learn-the-basics@nhUKKWyBH80nyKfGT8ErC.md

@@ -15,4 +15,3 @@ Learn more about SQL from the following resources:
 
 - [@article@SQL Tutorial - Mode](https://mode.com/sql-tutorial/)
 - [@article@SQL Tutorial](https://www.sqltutorial.org/)
-- [@article@SQL Tutorial - W3Schools](https://www.w3schools.com/sql/default.asp)

src/data/roadmaps/sql/content/left-join@X9cJJ8zLZCF2cOoqxwFfY.md

@@ -4,5 +4,4 @@ A `LEFT JOIN` in SQL returns all rows from the left (first) table and the matchi
 
 Learn more from the following resources:
 
-- [@article@SQL LEFT JOIN](https://www.w3schools.com/sql/sql_join_left.asp)
 - [@video@SQL LEFT JOIN - SQL Tutorial](https://www.youtube.com/watch?v=giKwmtsz1U8)

src/data/roadmaps/sql/content/mod@OUw--8zEq6lk5-6oySVHe.md

@@ -4,5 +4,4 @@ The `MOD` function in SQL calculates the remainder when one number is divided by
 
 Learn more from the following resources:
 
-- [@article@MOD](https://www.w3schools.com/sql/func_mysql_mod.asp)
 - [@video@MOD Function in SQL](https://www.youtube.com/watch?v=f1Rqf7CwjE0)

src/data/roadmaps/sql/content/nullif@KI6vngoYcHsnpIk8ErhhS.md

@@ -4,5 +4,4 @@
 
 Learn more from the following resources:
 
-- [@article@NULLIF](https://www.w3schools.com/sql/func_sqlserver_nullif.asp)
 - [@video@What is NULLIF in SQL?](https://www.youtube.com/watch?v=Jaw53T__RRY)

src/data/roadmaps/sql/content/operators@ffwniprGJHZzJ7t3lQcXz.md

@@ -4,5 +4,4 @@ SQL operators are symbols or keywords used to perform operations on data within
 
 Learn more from the following resources:
 
-- [@article@SQL Operators](https://www.w3schools.com/sql/sql_operators.asp)
 - [@article@SQL Operators: 6 Different Types](https://www.dataquest.io/blog/sql-operators/)

src/data/roadmaps/sql/content/order-by@NfCiSPrL4upMssukcw3Kh.md

@@ -4,5 +4,4 @@ The `ORDER BY` clause in SQL is used to sort the result set of a query by one or
 
 Learn more from the following resources:
 
-- [@article@SQL ORDER BY Keyword](https://www.w3schools.com/sql/sql_orderby.asp)
 - [@video@SQL ORDER BY Sorting Clause](https://www.youtube.com/watch?v=h_HHTNjAgS8)

src/data/roadmaps/sql/content/primary-key@Jlwmyq6CUQeDAlL4dazOP.md

@@ -4,5 +4,4 @@ A primary key in SQL is a unique identifier for each record in a database table.
 
 Learn more from the following resources:
 
-- [@article@SQL PRIMARY KEY Constraint](https://www.w3schools.com/sql/sql_primarykey.ASP)
 - [@article@SQL Primary Key](https://www.tutorialspoint.com/sql/sql-primary-key.htm)

src/data/roadmaps/sql/content/replace@VNbb3YPc0FtrROylRns8h.md

@@ -4,5 +4,4 @@ The `REPLACE` function in SQL is used to substitute all occurrences of a specifi
 
 Learn more from the following resources:
 
-- [@article@SQL REPLACE Function](https://www.w3schools.com/sql/func_sqlserver_replace.asp)
 - [@article@How to use the SQL REPLACE Function](https://www.datacamp.com/tutorial/sql-replace)

src/data/roadmaps/sql/content/right-join@shpgZkh1CLqUwjOaRtAFy.md

@@ -4,5 +4,4 @@ A `RIGHT JOIN` in SQL is a type of outer join that returns all rows from the rig
 
 Learn more from the following resources:
 
-- [@article@SQL RIGHT JOIN](https://www.w3schools.com/sql/sql_join_right.asp)
 - [@article@SQL RIGHT JOIN With Examples](https://www.programiz.com/sql/right-join)

src/data/roadmaps/sql/content/round@9DntFiZV1AyaRPhYP5q6u.md

@@ -4,5 +4,4 @@ The `ROUND` function in SQL is used to round a numeric value to a specified numb
 
 Learn more from the following resources:
 
-- [@article@SQL ROUND](https://www.w3schools.com/sql/func_sqlserver_round.asp)
 - [@article@What is the SQL ROUND Function and how does it work?](https://www.datacamp.com/tutorial/mastering-sql-round)

src/data/roadmaps/sql/content/select@i8u8E_sne6XiKJo2FXDog.md

@@ -4,5 +4,4 @@ SELECT is one of the most fundamental SQL commands, used to retrieve data from o
 
 Learn more from the following resources:
 
-- [@article@SQL_Select](https://www.w3schools.com/sql/sql_select.asp)
 

src/data/roadmaps/sql/content/select@rmqXH29n1oXtZ8tvmcRFn.md

@@ -4,4 +4,3 @@ SELECT is one of the most fundamental SQL commands, used to retrieve data from o
 
 Learn more from the following resources:
 
-- [@article@SQL_Select](https://www.w3schools.com/sql/sql_select.asp)

src/data/roadmaps/sql/content/sql-keywords@6yoo7qC6X2jYDIjd3HIm7.md

@@ -4,5 +4,4 @@ SQL keywords are reserved words that have special meanings within SQL statements
 
 Learn more from the following resources:
 
-- [@article@SQL Keywords Reference](https://www.w3schools.com/sql/sql_ref_keywords.asp)
 - [@article@SQL Keywords, Operators and Statements](https://blog.hubspot.com/website/sql-keywords-operators-statements)

src/data/roadmaps/sql/content/sum@w4T3jFb0ilf1KNw-AvRXG.md

@@ -4,5 +4,4 @@ SUM is an aggregate function in SQL used to calculate the total of a set of valu
 
 Learn more from the following resources:
 
-- [@article@SQL SUM Function](https://www.w3schools.com/sql/sql_sum.asp)
 - [@article@SQL SUM](https://www.studysmarter.co.uk/explanations/computer-science/databases/sql-sum/)

src/data/roadmaps/sql/content/timestamp@7hEqkoxkdAWmakGZsMJx-.md

@@ -6,5 +6,4 @@ Depending on the SQL platform, the format and storage size can slightly vary. Fo
 
 Learn more from the following resources:
 
-- [@article@MYSQL TIMESTAMP function](https://www.w3schools.com/mysql/func_mysql_timestamp.asp)
 - [@article@Different SQL TimeStamp functions in SQL Server](https://www.sqlshack.com/different-sql-timestamp-functions-in-sql-server/)

src/data/roadmaps/sql/content/update@KJJ6PYjTnr_3yU2mNPL9v.md

@@ -4,5 +4,4 @@ The UPDATE statement in SQL is used to modify existing records in a table. It al
 
 Learn more from the following resources:
 
-- [@article@SQL UPDATE Statement](https://www.w3schools.com/sql/sql_update.asp)
 - [@article@Efficient column updates in SQL](https://www.atlassian.com/data/sql/how-to-update-a-column-based-on-a-filter-of-another-column)

src/data/roadmaps/sql/content/update@eu9dJFi6gBPMBdy08Y5Bb.md

@@ -4,5 +4,4 @@ The UPDATE statement in SQL is used to modify existing records in a table. It al
 
 Learn more from the following resources:
 
-- [@article@SQL UPDATE Statement](https://www.w3schools.com/sql/sql_update.asp)
 - [@article@Efficient column updates in SQL](https://www.atlassian.com/data/sql/how-to-update-a-column-based-on-a-filter-of-another-column)

src/data/roadmaps/sql/content/upper@Othfo7NvTVzfyL906PLM1.md

@@ -4,5 +4,4 @@ UPPER() is a string function in SQL used to convert all characters in a specifie
 
 Learn more from the following resources:
 
-- [@article@SQL Server UPPER Function](https://www.w3schools.com/sql/func_sqlserver_upper.asp)
 - [@article@How to Convert a String to Uppercase in SQL](https://learnsql.com/cookbook/how-to-convert-a-string-to-uppercase-in-sql/)