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 syntax to use near '' '' at line 1 mysql> show tables; +---+ | Tables_in_db1 | +---+ | t1 | | t...
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The DECODE function in Oracle is a versatile and powerful tool that allows users to perform conditional transformations on data within an SQL query. It is similar to the CASE statement, but it offers a more compact syntax, making it a popular choice for simplifying complex queries and improving...
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-...
SQL> create table t as select username,default_tablespace,lock_date from dba_users;Table created.SQL> select * from t;USERNAME DEFAULT_TABLESPACE LOCK_DATE--- --- ---SYS SYSTEMSYSTEM SYSTEMOUTLN SYSTEMCSMIG SYSTEMSCOTT SYSTEMEYGLE USERSDBSNMP SYSTEMWMSYS SYSTEM 20-OCT-048 rows selected.SQL...
Transact-SQL 语法约定 语法 syntaxsql BASE64_DECODE(expression) 参数 expression varchar 类型的表达式 (n | max)。 返回类型 Varbinary(8000)。 如果输入为 varchar(max),则为Varbinary(max)。 如果输入表达式为 null,则输出为 null。 备注 编码后的字符串的字母表必须是RFC 4648 表 1的字母表,可能包含填充...
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...
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...
※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] ) ...
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...