The syntax is shown below. Here is the extracted SQL code and the result set: SQL Query: SELECT PRODUCT_ID, PACKAGE_ID, NVL(PACKAGE_ID, 0) FROM PRODUCT; Analysis of the Query: The NVL function substitutes null values with a specified default. In this case, NVL(PACKAGE_ID, 0)...
※引述自http://www.techonthenet.com/oracle/functions/decode.php In Oracle/PLSQL, thedecodefunction has the functionality of an IF-THEN-ELSE statement. The syntax for thedecodefunction is: decode( expression , search , result [, search , result]… [, default] ) expressionis the value to ...
一)建立存储过程时报SQL错误( have an error in your SQL syntax;...) 建立PROCEDURE等类型过程前需加上delimiter // ,最后也要以// 结尾,例如 delimiter // CREATE PROCEDURE UPDATE_PROCESSDEFID() BEGIN ... mysql decode函数 用法 mysql SQL错误 字符...
1 row in set (0.00 sec) mysql> create table t2(id int,name char(10)) engine=innodb default charset=utf8; Query OK, 0 rows affected (0.06 sec) ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right sy...
Syntax PowerShell Decode-SqlName-SqlName<String> [<CommonParameters>] Beschreibung Das CmdletDecode-SqlNamedecodiert einen codierten SQL Server Bezeichner. SQL Server durch Trennzeichen getrennte Bezeichner können Sonderzeichen enthalten, die in PowerShell-Objektnamen normalerweise nicht unterstützt...
To encode a SQL Server identifier in a PowerShell path Use one of two methods to encode a SQL Server identifier: Specify the hexadecimal code for the unsupported character using the syntax %XX, where XX is the hexadecimal code. Pass the identifier as a quoted string to the Encode-...
Using CASE WHEN in SQL Server, PostgreSQL, and MySQL The CASE WHEN statement provides an alternative to the DECODE() function for performing SQL's conditional logic transformation. The CASE WHEN syntax and implementation are consistent across SQL Server, PostgreSQL, and MySQL databases. The example...
如果是json格式错误,再低版本的php都会告诉你JSON_ERROR_SYNTAX,所以碰上JSON_ERROR_NONE第一个可能性就往非法utf8字符串想. 3、如何处理json中的非法utf8字符 根据utf8的编码范围,是可以剔除掉非法utf8字符的。 可以参见http://magp.ie/2011/01/06/rem… ...
TERMINAL returns the operating system identifier for your current session's terminal. In distributed SQL statements, this attribute returns the identifier for your local session. In a distributed environment, this is supported only for remote SELECT statements, not for remote INSERT, UPDATE, or DELETE...
Behavior type Syntax Arguments Examples SQL reference Functions Data-type-specific functions String functions DECODE DECODECompares *expression *to each search value one by one. If *expression *is equal to a search, the function returns the corresponding result. If no match is found, the fun...