You can use the date and time functions to query an SQL database for records related to a specific date and time. For example, you can use the CURDATE() function in MySQL to get data with a date field value equal to the current date. Querying data from past or future date In additio...
SqlFunctions 方法 Acos Ascii Asin Atan Atan2 Char CharIndex 總和檢查碼 ChecksumAggregate Cos Cot CurrentTimestamp CurrentUser DataLength DateAdd DateDiff DateName DatePart Degrees 差異 Exp GetDate GetUTCDate HostName IsDate IsNumeric Log Log10 NChar PatIndex Pi QuoteName Radians Rand 複寫 符號 正弦值...
3.2. Using LOCALTIMESTAMP Similar to MySQL, we can use the LOCALTIMESTAMP function to retrieve the current date and time: SELECT LOCALTIMESTAMP; This function doesn’t require parentheses. 4. SQL Server Finally, let’s discuss five functions to obtain the current date and time in SQL Server...
❮ Previous ❮ SQL Server Functions Next ❯ ExampleGet your own SQL Server Return the current date and time: SELECT CURRENT_TIMESTAMP; Try it Yourself » Definition and UsageThe CURRENT_TIMESTAMP function returns the current date and time, in a 'YYYY-MM-DD hh:mm:ss.mmm' format....
Let’s learn everything you need to know about the MySQL NOW function to retrieve the current date and time in your queries. Tools used in the tutorial Tool Description Link DBVISUALIZER TOP RATED DATABASE MANAGEMENT TOOL AND SQL CLIENT DOWNLOAD In programming, having a quick way to retrieve...
CURRENT_TIMESTAMP is a nondeterministic function. Views and expressions that reference this column cannot be indexed. Examples The following examples use the six SQL Server system functions that return current date and time to return the date, the time, or both. The values are returned in series...
CURRENT_DATECode language:SQL (Structured Query Language)(sql) Return value# The OracleCURRENT_DATEfunction returns aDATEvalue in the Gregorian calendar. Examples# The following statement changes the default date format to a new one that includes the time data: ...
svf->type=DATEOID;break; AI代码助手复制代码 解析SQLValueFunction 解析SQLValueFunction在文件src/backend/executor/execExprInterp.c中,对应的函数是ExecEvalSQLValueFunction,相关代码如下: voidExecEvalSQLValueFunction(ExprState *state, ExprEvalStep *op){switch(svf->op) ...
use the six SQL Server system functions that return current date and time values, to return the date, the time, or both. The examples return the values in series, so their fractional seconds might differ. Note that the actual values returned will reflect the actual day / time of execution...
use the six SQL Server system functions that return current date and time values, to return the date, the time, or both. The examples return the values in series, so their fractional seconds might differ. Note that the actual values returned will reflect the actual day / time of execution...