Oracle Select From Variable Table Name -

16/01/2008 · I was given one day to wrote a piece of PL/SQL code to do a query. That is, First select two columns from one table and use them to build another table's name, then join the two tables. I'm not sure if variables can be used in the select list, if possible, how to reference them? You can use a variable name in place of table_name in Table_name%rowtype. If it is necessary to take table_name as input then u can use substitution variable, that will work. Regards, Priti Mishra. On 5/14/08, dunclirj via oracle-sql-l wrote: > > > > > > You could possibly construct the code in a string to. 13/08/2013 · I am rying to run a TSQL SELECT Count that has a @Tablename variable in it. My Tablename name needs to be variable and I will build it on the fly. All I want to know if if there is data in the table.--Tried this but it did not work because of the @Database. Declare @Database varchar20 Set @Database = 'TDSTEP' Declare @RowCount int. I have a dynamic table name and need to run query against that table. The Following should be understandable by people, but not oracle: create_table_name:= 'CONFIGMASTER_' TO_CHAR SYSDATE,. Use variable as table name in PL/SQL select query. Consider the situation where you are writing a stored procedure that takes a column name as a variable, and then does some work based on a query that uses that column name. How would you do it? Let's consider a hypothetical situation. Say you have a table with all your employees. Some of the columns are responsible for their pay.

I need to use a table name in a FROM clause, generated dynamically. I know this is possible in SQLPlus &table_parameter, but I'm wonderring if this could be done in a regular SQL query. I have a query which returns table name and an ID which should be looked up in this table. I query a table which has another table name in one column. I must get that column value for searching that table. To do that I try something like this; select cap from select table_name from tab.

I don't know what should I write in place of column_name. In case of a table type which is based on some other type column_name is the element name of the type on which table type is created. But what should be the the column name in this case. Thanks. 6 Coding Dynamic SQL Statements. Dynamic SQL is a programming technique that enables you to build SQL statements dynamically at runtime. You can create more general purpose, flexible applications by using dynamic SQL because the full text of a SQL statement may be unknown at compilation. I'm converting my SQL Server databases to Oracle. I just looked at one of the stored procedures that I have to convert. Below query is only working when i assign signle name in variable "Table_Name" but when trying to execute it for all tables using cursor. First, declare a variable l_customer_namewhose data type anchors to the name columns of the customers table. This variable will hold the customer name. Second, use the SELECT INTO statement to select value from the name column and assign it to the l_customer_name variable. Third, show the customer name using the dbms_output.put_line procedure.

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