Learn how to use aggregate functions for summarizing results and gaining useful insights about data in SQL.
Based on the Oracle SQL query shown in the diagram, here is the extracted SQL code and the result set: SQL Query: SELECT STATE, DECODE(STATE, 'HI', 'Remote US state', 'AK', 'Continental US state', 'Contiguous US state') LOCATION FROM CUSTOMER; ...
Description: Subtracts arguments, producing a result in YYYY-MM-DD format. If the result is negative, the returned result is also negative.Return type: intervalExample:De
SQL++ has a dedicated set of window functions. Each window function call includes an OVER clause, which introduces the window specification. Some window functions take additional window options, which are specified by further clauses before the OVER clause. In Couchbase Server Enterprise Edition, agg...
82. What is the default data format for the sysdate in SQL Developer? DD-MON-YY DD-MON-RR DD/MON/RR DD/MON/YYYY Answer: C. For SQL*PLUS the default date format is DD-MON-RR. 83. Assuming the SYSDATE to be 10-JUN-2013 12:05pm, what value is returned after executing the belo...
replace_dom_in_container() : Json_array, Json_container, Json_object replace_equal_field() : Item, Item_field, Item_func replace_equal_field_checker() : Item, Item_func replace_field_processor() : Item, Item_field Replace_field_processor_arg() : anonymous_namespace{sql_table.cc}::Repla...
Select the right T-SQL function to get and change date and time data Handle NULLs safely and effectively Change data from one data type to another in T-SQL Plus, you'll get to practice your skills on 149 interactive exercises. Who Should Take This Course? Anyone who wants to learn about...
PATINDEXReturns the position of a pattern in a string QUOTENAMEReturns a Unicode string with delimiters added to make the string a valid SQL Server delimited identifier REPLACEReplaces all occurrences of a substring within a string, with a new substring ...
1 Function and Operator Reference 2 Type Conversion in Expression Evaluation 3 Operators3.1 Operator Precedence 3.2 Comparison Functions and Operators 3.3 Logical Operators 3.4 Assignment Operators 4 Control Flow Functions 5 String Function5.1 String Comparison Functions ...
Description: Converts x into the type specified by y.Examples:Description: Converts characters containing hexadecimal digits in the CHAR, VARCHAR2, NCHAR, or NVARCHAR2 da