i use ORACLE SQL and i want to Update a table with conditions. One Condition is that in a other database the table is the value null. But i get the error ‘Table, view or sequence reference ‘Db2table.MERGE_UNIT_ID’ not valid in this context.‘ For this I create a new table with the column of the… Read More Oracle SQL other database use in update or if

I have employee table in postgreSQL CREATE TABLE Employee(EmployeeID integer PRIMARY KEY AUTO_INCREMENT, Employeename VARCHAR(100)); alter table Employee add column parents JSON; Now, I want to update JSON column with JSON array with a value from the existing column like below. update employee set parents = json_array_elements(‘[{"name":Employeename, "id":EmployeeID }]’) Any way I can achieve this?… Read More PostgreSQL JSON array value from another column

I have two tables, where I would like to update table_2 if the column’s value is same and then applying inner join with table1. I would like to do in one execution. Here I habe table1 and table2, where item_2 of table2 has same value with status = 0. Here I would like to update… Read More Inner join and update the table in one execution DB2

I need to update whole column selecting from another column I tried this update turnoverrate_tm.dm_turnover_tmp_sales set t.dmitm=w.dmitm from turnoverrate_tm.w2nx3l04i as w inner join turnoverrate_tm.dm_turnover_tmp_sales as t on w.dmitm=t.sditm;` ` and got this error ERROR: column "t" of relation "dm_turnover_tmp_sales" does not exist LINE 2: set t.dmitm=w.dmitm Help me in updating this column >Solution : This… Read More Update whole column in postgres sql

I want to base64-encode all names in a table. (PostgreSql) What does seem logical to me, doesn’t work. I tried: update person set name = encode(name, ‘base64’); throws an error: ERROR: function encode(character varying, unknown) does not exist SELECT encode(‘test, ‘base64′); -> works without problems How can I pass the value of ‘name’ to the… Read More SQL Update: How to pass current value to function?

I have the following situation: A user can have maximum number of partnerships. For example – 40.000 Question: In case user wants to add a new partnership, how it will be faster to check the current number of partnerships ? Solution 1: Using a count(*) statement ? Solution 2: Storing the value into a separate… Read More What is faster – count(*) OR select row + update MYSQL

UPDATE trgt SET trgt.User = dbo.ScrambleEmail ( @Mode, @Key, trgt.[User] ) FROM [company].[User_Group] trgt I’m a little confused about this update statement. I understand that it is calling an existing function during the update statement but it’s a little different from other update statements. Normally an update statement ends with "where" however this update statement… Read More Can anyone explain what this script in SQL means?

So, I have 3 columns: building_name, latitude, longitude. Some of the lats and longs haven’t been filled in, however they have in other records. This means I can extract the latitude and longitude on other records matching the building name. I need to do the following: Get all records with lat and long that are… Read More How to update data from 1 table with subqueries

I have two huge tables. Let’s call them as ITEM table (1807236 records) and ITEM_PROD_DUMP table (796369 records). I need to update two columns (total_volume_amount, total_volume_uom) from ITEM table with the values of second table ITEM_PROD_DUMP where their primary key (SYS_ITEM_ID) matches. I have written a query to do so, it works but only for… Read More Oracle | Update huge table after comparing values with other table