Sql where decode
Web参数说明. str：要解码的字符串，必须为 varchar 类型。. 返回值说明. 返回一个 varchar 类型的值。如果输入为 null 或无效的 base64 编码字符串，则返回 null。如果输入为空，则返 … WebDECODE . Syntax. Description of the illustration ''decode.gif'' Purpose. DECODE compares expr to each search value one by one. If expr is equal to a search, then Oracle Database …
Sql where decode
Did you know?
WebJul 19, 2024 · Oracleで条件をわけるには通常WHERE句を使用しますが、SELECT句の「DECODE」や「CASE」でも条件をわけることができます。. 今回は「DECODE」を取り … WebPl/SQL decode function is used for evaluating the same logic as that of if else and if else if ladder. The decode function has the advantage that the while of the if else condition or else if ladder can be placed in the single line simplifying the code for reading.
WebThe DECODE function is not specifically for handling null values, but it can be used in a similar way to the NVL function, as shown by the following example. SQL> SELECT id, DECODE (col1, NULL, 'ZERO', col1) AS output FROM null_test_tab ORDER BY id; ID OUTPUT ---------- ---------- 1 ONE 2 ZERO 3 ZERO 4 ZERO 4 rows selected. SQL> NVL2 WebApr 12, 2024 · Here, the WHERE clause is used to filter out a select list containing the ‘FirstName’, ‘LastName’, ‘Phone’, and ‘CompanyName’ columns from the rows that …
WebThe DECODE function ensures that the divisor is something other than zero. Here is the CASE version of the statement: SELECT p.part_nbr, SYSDATE + (p.inventory_qty / CASE WHEN my_pkg.get_daily_part_usage (p.part_nbr) > 0 THEN my_pkg.get_daily_part_usage (p.part_nbr) ELSE 1 END) anticipated_shortage_dt FROM part p WHERE p.inventory_qty > 0; WebThe SQL CASE Expression. The CASE expression goes through conditions and returns a value when the first condition is met (like an if-then-else statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSE clause. If there is no ELSE part and no conditions are ...
WebThe spark-protobuf package provides function to_protobuf to encode a column as binary in protobuf format, and from_protobuf () to decode protobuf binary data into a column. Both functions transform one column to another column, and the input/output SQL data type can be a complex type or a primitive type. Using protobuf message as columns is ...
WebIn this topic, we described about the DECODE Statement with detailed example. DECODE statement is used to check multiple conditions and returns corresponding value to that condition in result set when the condition became true. DECODE statement works on ORACLE database only. while checking conditions first condition itself satisfied DECODE ... oven professioneelWebSQL. Tutorial. SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS … ovenproof ceramic platesWebOct 14, 2016 · decode in where clause in oracle sql. Now we are having US MyAccount Website value , I want to add more condition to pick correct value in t1.source_site. … raleigh to seattleWebDatabase SQL Language Reference DECODE Syntax Description of the illustration ''decode.gif'' Purpose DECODE compares expr to each search value one by one. If expr is equal to a search, then Oracle Database returns the corresponding result. If no match is found, then Oracle returns default. If default is omitted, then Oracle returns null. raleigh to san diego flightsWebA) Use DECODE () function to make data more meaningful See the following locations table in the sample database: The following statements return the country that has at least two … raleigh to seattle cheap flightsWebJul 19, 2010 · DECODE can work as a function inside SQL only. CASE can be an efficient substitute for IF-THEN-ELSE in PL/SQL. SQL> declare 2 grade char(1); 3 begin 4 grade := 'b'; 5 case grade 6 when 'a' then dbms_output.put_line('excellent'); 7 when 'b' then dbms_output.put_line('very good'); oven proof breadWebhex_decode_string 功能. 将输入字符串中每一对十六进制数字解析为一个数字，并将解析得到的数字转换为表示该数字的字节，然后返回一个二进制字符串。该函数是 hex() 函数的反向函数。 语法 raleigh to southern pines