dml
Oracle: update a column in table a from values in other tables
I\'m trying to support multiple databases for an app that I\'m writing.The app mostly uses Hibernate, but it\'s incredibly inefficient to iterate over millions of rows and process them individually wh[详细]
2023-01-18 00:26 分类:问答Adding constraints is DDL or DML
Adding constraints in sql server comes under which category 开发者_如何转开发DML or DDL?DDL, as you\'re defining the relationships between tables, not modifying the data stored in them.DDL, since they[详细]
2023-01-16 02:25 分类:问答Can I see the DML inside an Oracle trigger?
Is it possible to see the DML (SQL Statement) that is being run that caused a trigger to be executed?[详细]
2023-01-11 20:15 分类:问答Generating MySQL UPDATE statements containing BLOB image data
I\'m trying to write an SQL statement that will generate an SQL script that will update a BLOB field with an IMAGE being selected from the database.[详细]
2022-12-26 20:08 分类:问答PL\SQL DML instruction
Is Commit a DML instruction in PL\\SQ开发者_如何学CL? No, it\'s a transaction control (TCL) statement, not a data manipulation (DML) statement.Here is a list of SQL statement types.No COMMIT is not a[详细]
2022-12-20 19:31 分类:问答MySQL Bug? "SHOW TABLE STATUS" Reports Fluxuating Number of Rows During Import
I\'m importing 4.1mil records into an offline system to do some analysis on a subset of our database.As I\'m running the import, I\'m trying to check its progress by using:[详细]
2022-12-19 15:13 分类:问答mysql @@identity vs sql-server last_insert_id()
Am I correct in understanding that mysql\'s LAST_INSERT_ID() function doesn\'t res开发者_StackOverflow中文版et between insert attempts (as @@identity does in sql-server)... that if the immediately pre[详细]
2022-12-19 02:01 分类:问答DDL statements against deleted inserted in DML trigger
I am trying to find impact of doing DDL statement against deleted and inserted logical tables inside table trigger. I have:[详细]
2022-12-14 09:17 分类:问答