Oracle: Find The Total Size Of All Of Your CLOB & BLOB Columns In All Tables

Today I received a request from an application owner who wanted to know the size of all the CLOB and BLOB columns in all the non-system tables so that they have a good idea of the size involved for a migration. Tables with BLOB/CLOB columns The SQL to find the tables with the BLOB/CLOB columns …

Advertisement

SQL Server: Dynamically Calculate Delta Values For Numeric And Date Columns From DMV’s Or Any Table

DMV's are very useful. In fact, they are like glass windows that lets you look at a running engine. There are lots of them and they give us lots of numbers but Most are cumulative in nature!  i.e., the numbers keep on increasing and never decrease. A variation of above like space usage where the …

SQL Server – Calculating Business Days Between Two Dates (With Holiday Exclusion)

Note: The post is the same as the previous one for Oracle but this is for SQL Server. Although the date arithmetic gets a little complicated by the SQL Server syntax, the concept is the same. If you search the web on how to calculate the number of business days between two dates in SQL …

Oracle – Calculating Business Days Between Two Dates (With Holiday Exclusion)

If you search the web on how to calculate the number of business days between two dates in Oracle, you would see so many results. Here is one more with some explanation to go with it. There is no magic to it. It is simple and straight-forward and this is as basic as it can …