SELECT MYTABLE1.*, MYTABLE2.* FROM MYTABLE1 LEFT OUTER JOIN MYTABLE2 ON same WHERE XXX The ON does not have to relate the two tables This is more like a filtered cross join 1 solved Convert multiple sub-queries to on join [closed]
I see that your custumers are identified by the telephone number, i don’t think that is a good idea, since telephone number can change quite often in your custumer table, anyway this should be the query. SELECT SA.* FROM STATAMENT_OF_ACCOUNT_TBL SA JOIN OFFICIAL_RECEIP_TBL R ON SA.STATEMENT_ACC_NO=R.STATEMENT_ACC_NO JOIN CUSTUMER_TBL C ON C.CUS_TEL_NO=R.CUS_TEL_NO WHERE C.CUS_TEL_NO=’422-9418′ Ah, and … Read more
I presume you mean ansi SQl. In general, the answer would be specific to the way the two queries were written. You can write a bad query in either language to produce the same result. However, most of the time, the database vendors code written specifically for that engine will outperform generic SQl for complex … Read more
I ended up subquerying with this in the SELECT — cast(substring(column FROM ‘[0-9]+’) as int) and this in the WHERE column ~ ‘^\d+$’ in the FROM as its own table. Pulling just the integers i needed from that with IN (1,2,3) solved Pull specific numbers from a column that has numbers and words
WITH recentPhone as ( SELECT Cname, MAX(MobileSI) as recentSI from RECORDS GROUP BY Cname ) SELECT CASE WHEN earlier.Mname is null THEN RECORDS.Cname + ‘ has just got their first mobile, a ‘ + RECORDS.Mname ELSE RECORDS.Cname + ‘ has upgraded from a ‘ + RECORDS.Mname + ‘ to a ‘ + earlier.Mname END as … Read more
Jain, it looks like you are trying to adapt the code in the answer here to your own situation. What Andomar did there was to select the information from a subquery which contained only a single value, since he didn’t have access to the original poster’s source and tables. Doing it that way allows everyone … Read more
You want to create a new table that acts as a link between the subject and teacher, lets call it teacher_subject. The table should have three columns: id, subjectId and teacherId. To add a subject to the teacher, just insert a new row with the correct subjectId and teacherId. To get all the subjects that … Read more
Right click on the database you want to import/export to, click Tasks, then Import Data/Export Data, then follow the wizard that pops up, it’s pretty straight forward from there. solved Exporting excel spreedsheet to SQL Server Management Studio
SELECT product_sales.*, state_names FROM product_sales INNER JOIN states_keys ON product_sales.state_key = states_keys.state_key solved Join SQL tables, but with additional info from joined table
I assume YEAR is an Integer number, best practice would be to have a column type as data, and get the year using the YEAR function in SQL. SELECT CONSUMER_NUMBER FROM CONSUMER_INFO WHERE YEAR(Data) =2014 AND CONT = ‘USA’ AND ROWNUM = 1 ; Something like this, but anyway I don’t think this is the … Read more
SELECT eav.value AS ‘unspsc’,COUNT( e.sku) FROM catalog_product_entity e JOIN catalog_product_entity_varchar eav ON e.entity_id = eav.entity_id JOIN eav_attribute ea ON eav.attribute_id = ea.attribute_id WHERE ea.attribute_code=”unspsccode” GROUP BY eav.value solved How to use group by in this cquery?
There’s no real hard limit. It will all depend on a number of factors; including the profile of your db traffic, the resources available to your db, your db architecture (replicated/distributed etc), your schema, your app design, network connectivity, your user’s expectations. The best thing to do would be to have an idea of what … Read more
Your problem is coming from including columns in SELECT statement from table_2 that do not have values for rows that exists in table_1. You need to change SELECT Table_2.ScriptNumber to SELECT Table_1.ScriptNumber As future reference make sure you always select all relevant columns from LEFT tables and only columns you need from RIGHT table. Otherwise … Read more
Using substr: declare l_start number := DBMS_UTILITY.get_cpu_time; begin for i in ( with t as ( select ‘Chapter ‘ || level || ‘ Unit ‘ || level || ‘ Sect ‘ || level d from dual connect by rownum < 100000 ) select substr(d, 1, instr(d, ‘ ‘, 1, 2) – 1) chapter , substr(d, … Read more
You can use an aggregate function with a CASE expression similar to this: select itemname, sum(case when month(date) = month(getdate()) -1 then amt else 0 end) LastMonthAmt, sum(case when month(date) = month(getdate()) then amt else 0 end) CurrentMonthAmt from yourtable group by itemname; See SQL Fiddle with Demo 0 solved Current month and last month … Read more