db2

问题 This question already has answers here : How to use indexes for a query filtering BETWEEN two columns (2 answers) Closed 5 years ago . Need a generic sql query for joins that can run on mysql, postgres and other major DBs I have a table named autumn4.ip , I have three columns: id,start,end (all ints). How do I make a join so that I make use of BUT not by BETWEEN but by JOINS. like pseudo: select * FROM autumn.ip WHERE :number-constant >= start ORDER BY start DESC LIMIT 1; + select * FROM

问题 I've created sequence by following statement: CREATE SEQUENCE MAIN.MY_SEQUENCE START WITH 1 INCREMENT BY 1 CACHE 50; And table by following statement: CREATE TABLE MAIN.EMPLOYEES( ID INTEGER NOT NULL, NAME VARCHAR(512), EMAIL VARCHAR(254), PRIMARY KEY (ID) ) Now when I try to insert a new record by using following statement: INSERT INTO MAIN EMPLOYEES (ID, NAME, EMAIL) VALUES (MAIN.MY_SEQUENCE.NEXTVAL, 'Name 1', 'email1@example.com') UNION ALL VALUES (MAIN.MY_SEQUENCE.NEXTVAL, 'Name 2',

问题 i'm ok with insertion and selecting, but when i'm trying to retrieve particular document from table while using JSON_VAL index, i'm facing error with sql code -440. 来源： https://stackoverflow.com/questions/42155988/db2-json-facing-440-sql-error-while-using-json-val-for-indexing

问题 DB2 has authentication type SERVER_ENCRYPT, but when I try to get connected: Properties properties = new Properties(); properties.setProperty("securityMechanism", Integer.toString(DB2BaseDataSource.ENCRYPTED_USER_AND_PASSWORD_SECURITY)); properties.setProperty("user", userDRS); properties.setProperty("password", passwordDRS); connDRS =DriverManager.getConnection(urlDRS, properties); I obtain [ERROR] resources.DB2Util 'com.ibm.db2.jcc.b.SqlException: [jcc][1071][10611][3.50.152] Caught java

问题 I am attempting to get the ResultsetMetadata from a spring jdbc query. When I run the code I get a bad SQL grammar error (below). Running the same query in IBM Data Studio returns a result. Part of my confusion is that the error is Parameter index is out of range despite the fact that my query isn't parameterised. List rsmdList = sourceJdbcTemplate.queryForList("SELECT * FROM MYSCHEMA.MYTABLE fetch first 1 rows only", new ResultSetExtractor() { @Override public ResultSetMetaData extractData

问题 I am trying to create a select that will allow me to join two tables together without using any operation that uses JOIN. The catch is that these two tables contain a one to many relationship. Let's say there are two tables, Department and Course. Department D_CODE | SCHOOL 01 | 1111 02 | 1111 03 | 2222 Course CRS_CODE | D_CODE MATH1 | 01 MATH2 | 02 ACCT1 | 03 How do I find all schools and the total number of courses it provides without using any type of join? The result is that School 1111

问题 What is Lock List Size , Maximum Lock List Size and Locks Available in the result of explain using IBM data studio. I read some sources from IBM but can not understand the complete concept and different between those. Please tell any resources about these attributes (also others in the attribute pane) Thanks 回答1: Thanks to Lennart, Lock list size is Lock list memory in use (Bytes) (see snapshot). Maximum lock list size is MAXLOCKS, Percent. of lock lists per application (see db cfg) and Locks

问题 Im writing a VB app that is scrubbing some data inside a DB2 database. In a few tables i want to update entire columns. For example an account number column. I am changing all account numbers to start at 1, and increment as I go down the list. Id like to be able to return both the old account number, and the new one so I can generate some kind of report I can reference so I dont lose the original values. Im updating columns as so: DECLARE @accntnum INT SET @accntnum = 0 UPDATE accounts SET

问题 We work with DB2 effective version 8 (more or less, so no CUR_COMMIT) on z/OS. In our (Java based, though this should not be relevant) application a method exists which runs in a transaction and deletes multiple records from a table called, say, MY_TABLE, based on the value of a certain column which we will call SPECIAL_COLUMN, executing the statement DELETE FROM MY_TABLE WHERE SPECIAL_COLUMN=? Apart from executing this statement, some other SQL statements get executed which I omit because

问题 I'm querying some data from a table in DB2/z which holds hourly data but occasionally skips some hours (if the clients don't send up details for that hour). Since I'm feeding the data straight into a charting tool which needs a query to get the axis data, it sometimes has missing values from the time axis and looks ugly: 23.00 |=== 22.00 |===== 14.00 |============ 01.00 |== 00.00 |= +-------------------- We've been verboten from adding any helper tables like a 24-row table holding all the