What company owns postgresql?

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how to create a new table by selecting rows from another table in mysql? : Sql dba

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How do I know if I have sql express or standard?

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Why do we need cursors in pl sql?

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SELECT emp_num, years, SUM(salary) FROM sales UNION ALL SELECT emp_id, SUM(takehomepay) FROM marketing What error is present in the sample code above? 1. Queries being combined with the UNION ALL statement are not allowed to have SELECT lists with a different number of expressions. 2. You are not allowed to use aggregate functions within two queries joined by a UNION ALL statement. 3. The UNION ALL statement incorrectly combines the "years" result from the first query with the "SUM (takehomepay)" result from the second query. 4. Unless the UNION ALL statement is replaced with a UNION statement, the queries will return duplicates. 5. The "emp_id" column from the second query must be renamed (or aliased) as "emp_num" so that it corresponds to the column name from the first query. Otherwise, the queries will not execute.

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Is sql a case sensitive language?

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If there are 1 to 100 numbers in a table and in that 100 numbers some 10 numbers are deleted.I want to find out the missing numbers between 1 to 100 by pl/sql how?

9 Answers   JPMorgan Chase,

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Why is theta join required?

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How to check if a column is nullable before setting to nullable?

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How to fetch alternate records from a table?

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In a package if we have 10 procedures or functions,How to know which will execute first?

1 Answers   Sollet Soft,

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what are the differences between char and nchar? : Sql dba

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